220812056 has 16 divisors (see below), whose sum is σ = 415333440. Its totient is φ = 110056480.

The previous prime is 220812047. The next prime is 220812107. The reversal of 220812056 is 650218022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41000 + ... + 46071.

It is an arithmetic number, because the mean of its divisors is an integer number (25958340).

Almost surely, 2^220812056 is an apocalyptic number.

It is an amenable number.

220812056 is a deficient number, since it is larger than the sum of its proper divisors (194521384).

220812056 is a wasteful number, since it uses less digits than its factorization.

220812056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87394 (or 87390 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 220812056 is about 14859.7461620312. The cubic root of 220812056 is about 604.4229235397.

The spelling of 220812056 in words is "two hundred twenty million, eight hundred twelve thousand, fifty-six".