General fact: 4226 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 4226 is a boring number.
Trivia: 4226 is an unremarkable number.
Historical date: July 27th is the day in 1900 that Kaiser Wilhelm II makes a speech comparing Germans to Huns; for years afterwards, "Hun" would be a disparaging name for Germans.