22056312 has 16 divisors (see below), whose sum is σ = 55140840. Its totient is φ = 7352096.

The previous prime is 22056311. The next prime is 22056323. The reversal of 22056312 is 21365022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22056311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459483 + ... + 459530.

Almost surely, 2^22056312 is an apocalyptic number.

It is an amenable number.

22056312 is an abundant number, since it is smaller than the sum of its proper divisors (33084528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22056312 is a wasteful number, since it uses less digits than its factorization.

22056312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919022 (or 919018 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 22056312 is about 4696.4148028044. The cubic root of 22056312 is about 280.4428027669.

The spelling of 22056312 in words is "twenty-two million, fifty-six thousand, three hundred twelve".