12220810 has 16 divisors (see below), whose sum is σ = 25140096. Its totient is φ = 4189968.

The previous prime is 12220771. The next prime is 12220823. The reversal of 12220810 is 1802221.

It is a super-2 number, since 2×12220810² = 298696394112200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87222 + ... + 87361.

It is an arithmetic number, because the mean of its divisors is an integer number (1571256).

Almost surely, 2^12220810 is an apocalyptic number.

12220810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12220810 is an abundant number, since it is smaller than the sum of its proper divisors (12919286).

12220810 is a wasteful number, since it uses less digits than its factorization.

12220810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174597.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 12220810 is about 3495.8275129074. The cubic root of 12220810 is about 230.3385687921.

The spelling of 12220810 in words is "twelve million, two hundred twenty thousand, eight hundred ten".