Hecho matemático: 1221 is an uninteresting number.
Trivia: 1221 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fecha histórica: May 5th is the day in 2007 that all 114 aboard Kenya Airways Flight 507 die when the pilots lose control of the plane and it crashes in Douala, Cameroon.