22256212 has 12 divisors (see below), whose sum is σ = 42489216. Its totient is φ = 10116440.

The previous prime is 22256209. The next prime is 22256231. The reversal of 22256212 is 21265222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 252868 + ... + 252955.

It is an arithmetic number, because the mean of its divisors is an integer number (3540768).

Almost surely, 2^22256212 is an apocalyptic number.

22256212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22256212 is a deficient number, since it is larger than the sum of its proper divisors (20233004).

22256212 is a wasteful number, since it uses less digits than its factorization.

22256212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505838 (or 505836 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 22256212 is about 4717.6489907580. The cubic root of 22256212 is about 281.2874891920.

The spelling of 22256212 in words is "twenty-two million, two hundred fifty-six thousand, two hundred twelve".