PROSPECTUS SUPPLEMENT File No. 333-52822 (To Prospectus Supplement and Prospectus dated January 24, 2001) Rule 424(b)(3) Prospectus number: 2192 Merrill Lynch & Co., Inc. Medium-Term Notes, Series B Due Nine Months or More from Date of Issue Floating Rate Notes Principal Amount: $200,000,000 Original Issue Date: January 15, 2002 CUSIP Number: 59018YLL3 Stated Maturity Date: January 15, 2004 Interest Calculation: Day Count Convention: -------------------- -------------------- [X] Regular Floating Rate Note [X] Actual/360 [ ] Inverse Floating Rate Note [ ] 30/360 (Fixed Interest Rate): [ ] Actual/Actual Interest Rate Basis: ------------------- [ ] LIBOR [ ] Commercial Paper Rate [ ] CMT Rate [ ] Eleventh District Cost of Funds Rate [ ] Prime Rate [ ] CD Rate [X] Federal Funds Rate [ ] Other (see attached) [ ] Treasury Rate Designated CMT Page: Designated LIBOR Page: CMT Telerate Page: LIBOR Telerate Page: CMT Reuters Page: LIBOR Reuters Page: Index Maturity: Fed Funds Effective Minimum Interest Rate: Not Applicable Spread: 0.350% Maximum Interest Rate: Not Applicable Initial Interest Rate: TBD Spread Multiplier: Not Applicable Interest Reset Dates: Daily, commencing January 15, 2002 through the maturity date; subject to the following business day convention Interest Payment Dates: Quarterly, on the 15th of Jan., April, July and October commencing April 15, 2002; subject to the following business day convention Repayment at the Option of the Holder: The Notes cannot be repaid prior to the Stated Maturity Date. Redemption at the Option of the Company: The Notes cannot be redeemed prior to the Stated Maturity Date. Form: The Notes are being issued in fully registered book-entry form. Trustee: The Chase Manhattan Bank Dated: January 10, 2002