22100957 has 4 divisors (see below), whose sum is σ = 22307616. Its totient is φ = 21894300.

The previous prime is 22100941. The next prime is 22100959. The reversal of 22100957 is 75900122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22100957 - 2⁴ = 22100941 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 (22100959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103169 + ... + 103382.

It is an arithmetic number, because the mean of its divisors is an integer number (5576904).

Almost surely, 2^22100957 is an apocalyptic number.

It is an amenable number.

22100957 is a deficient number, since it is larger than the sum of its proper divisors (206659).

22100957 is a wasteful number, since it uses less digits than its factorization.

22100957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206658.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 22100957 is about 4701.1654937898. The cubic root of 22100957 is about 280.6318934721.

The spelling of 22100957 in words is "twenty-two million, one hundred thousand, nine hundred fifty-seven".