Fait général: 21442 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 21442 is an unremarkable number.
Culture générale: 21442 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: September 14th is the day in 1985 that Penang Bridge, the longest bridge in Malaysia, connecting the island of Penang to the mainland, opens to traffic.