Fatto generale: 4229 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 4229 is an unremarkable number.
Trivia: 4229 is an uninteresting number.
Data storica: July 30th is the day in 1502 that Christopher Columbus lands at Guanaja in the Bay Islands off the coast of Honduras during his fourth voyage.