Hecho matemático: 2243 is the smallest prime so that it and the next 2 primes are all equal to 3 (mod 8).
Trivia: 2243 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fecha histórica: February 20th is the day in 1877 that Tchaikovsky's ballet Swan Lake receives its première performance at the Bolshoi Theatre in Moscow.