CITIGROUP INC. 5.500% Notes due October 15, 2014

This Note is a Global Security within the meaning of the Indenture hereinafter referred to and is registered in the name of the Depository named below or a nominee of the Depository.  This Note is not exchangeable for Notes registered in the name of a Person other than the Depository or its nominee except in the limited circumstances described herein and in the Indenture, and no transfer of this Note (other than a transfer of this Note as a whole by the Depository to a nominee of the Depository or by a nominee of the Depository to the Depository or another nominee of the Depository) may be registered except in the limited circumstances described herein.

Unless this certificate is presented by an authorized representative of The Depository Trust Company, a New York corporation (the “Depository”), to the Company or its agent for registration of transfer, exchange, or payment, and any certificate issued is registered in the name of Cede & Co. or in such other name as is requested by an authorized representative of the Depository (and any payment is made to Cede & Co. or to such other entity as is requested by an authorized representative of the Depository), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL inasmuch as the registered owner hereof, Cede & Co., has an interest herein.

CITIGROUP INC., a Delaware corporation (the “Company”, which term includes any successor Person under the Indenture), for value received, hereby promises to pay to Cede & Co., or registered assigns, the principal sum of $____________ on October 15, 2014 and to pay interest thereon from and including September 24, 2009 or from the most recent Interest Payment Date to which interest has been paid or duly provided for, semi-annually, on April 15 and October 15 of each year, commencing April 15, 2010 at the rate of 5.500% per annum, until the principal hereof is paid or made available for payment.  The interest so payable, and punctually paid or duly provided for, on any Interest Payment Date will, as provided in the Indenture, be paid to the Person in whose name this Note is registered at the close of business on the Record Date for such interest, which shall be the April 1 and October 1 (whether or not a Business Day) immediately preceding such Interest Payment Date.

Any such interest not so punctually paid or duly provided for will forthwith cease to be payable to the holder on such Record Date and may either be paid to the Person in whose name this Note is registered at the close of business on a subsequent Record Date, such subsequent Record Date to be not less than five days prior to the date of payment of such defaulted interest, notice whereof shall be given to holders of Notes of this series not less than 15 days prior to such subsequent Record Date, or be paid at any time in any other lawful manner not inconsistent with the requirements of any securities exchange on which the Notes of this series may be listed, and upon such notice as may be required by such exchange, all as more fully provided in the Indenture.

Interest hereon will be calculated on the basis of a 360-day year comprised of twelve 30-day months.

If either an Interest Payment Date or the Maturity of the Notes falls on a day that is not a Business Day, such Interest Payment Date or Maturity will be the next succeeding Business Day.  If a date for payment of interest or principal on the Notes falls on a day that is not a business day in the place of payment, such payment will be made on the next succeeding business day in such place of payment as if made on the date the payment was due.  No interest will accrue on any amounts payable for the period from and after the due date for payment of such principal or interest.

For these purposes, “Business Day” means any day which is a day on which commercial banks settle payments and are open for general business in The City of New York.

Payment of the principal of and interest on this Note will be made at the office or agency of the Trustee maintained for that purpose in The City of New York.

Reference is hereby made to the further provisions of this Note set forth on the reverse hereof, which further provisions shall for all purposes have the same effect as if set forth at this place.

Unless the certificate of authentication hereon has been executed by the Trustee or by an authenticating agent on behalf of the Trustee by manual signature, this Note shall not be entitled to any benefit under the Indenture or be valid or obligatory for any purpose.

This Note is one of a duly authorized issue of Securities of the Company (the “Notes”), issued and to be issued in one or more series under the Indenture, dated as of March 15, 1987 (as amended and supplemented to date, the “Indenture”), between the Company and The Bank of New York Mellon, formerly known as The Bank of New York, as Trustee (the “Trustee”, which term includes any successor trustee under the Indenture), to which Indenture and all indentures supplemental thereto reference is hereby made for a statement of the respective rights, limitations of rights, duties and immunities thereunder of the Company, the Trustee and the holders of the Notes and of the terms upon which the Notes are, and are to be, authenticated and delivered.  This Note is one of the series designated on the face hereof, initially limited in aggregate principal to $2,000,000,000.

If an event of default (as defined in the Indenture) with respect to Notes of this series shall occur and be continuing, the principal of the Notes of this series may be declared due and payable in the manner and with the effect provided in the Indenture.

The Indenture contains provisions for defeasance at any time of the entire indebtedness of this Note upon compliance by the Company with certain conditions set forth in Sections 11.03 and 11.04 thereof, which provisions apply to this Note.

The Indenture contains provisions permitting the Company and the Trustee, without the consent of the holders of the Securities, to establish, among other things, the form and terms of any series of Securities issuable thereunder by one or more supplemental indentures, and, with the consent of the holders of not less than 66 2/3% in aggregate principal amount of Securities at the time outstanding which are affected thereby, to modify the Indenture or any supplemental indenture or the rights of the holders of Securities of such series to be affected, provided that no such modification will (i) extend the fixed maturity of any Securities, reduce the rate or extend the time of payment of interest thereon, reduce the principal amount thereof or the premium, if any, thereon, reduce the amount of the principal of Original Issue Discount Securities payable on any date, change the currency in which Securities are payable, or impair the right to institute suit for the enforcement of any such payment on or after the maturity thereof, without the consent of the holder of each Security so affected, or (ii) reduce the aforesaid percentage of Securities of any series the consent of the holders of which is required for any such modification without the consent of the holders of all Securities of such series then outstanding, or (iii) modify, without the written consent of the Trustee, the rights, duties or immunities of the Trustee.

No reference herein to the Indenture and no provision of this Note or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of and interest on this Note at the times, place and rate, and in the coin or currency, herein prescribed.

This Note is a Global Security registered in the name of a nominee of the Depository.  This Note is exchangeable for Notes registered in the name of a person other than the Depository or its nominee only in