Hecho general: 21940 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 21940 is a boring number.
Trivia: 21940 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fecha histórica: January 25th is the day in 1348 that a strong earthquake strikes the South Alpine region of Friuli in modern Italy, causing considerable damage to buildings as far away as Rome.