22212957 has 32 divisors (see below), whose sum is σ = 34693120. Its totient is φ = 12519360.

The previous prime is 22212941. The next prime is 22212959. The reversal of 22212957 is 75921222.

It is not a de Polignac number, because 22212957 - 2⁴ = 22212941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212959) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22488 + ... + 23454.

It is an arithmetic number, because the mean of its divisors is an integer number (1084160).

Almost surely, 2^22212957 is an apocalyptic number.

It is an amenable number.

22212957 is a deficient number, since it is larger than the sum of its proper divisors (12480163).

22212957 is a wasteful number, since it uses less digits than its factorization.

22212957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033.

The product of its digits is 5040, while the sum is 30.

The square root of 22212957 is about 4713.0623802364. The cubic root of 22212957 is about 281.1051433803.

The spelling of 22212957 in words is "twenty-two million, two hundred twelve thousand, nine hundred fifty-seven".