General fact: 21226 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 21226 is an unremarkable number.
Trivia: 21226 is an unremarkable number.
Historical date: February 10th is the day in 1989 that Ron Brown is elected chairman of the Democratic National Committee becoming the first African American to lead a major American political party.