22131970 has 32 divisors (see below), whose sum is σ = 45697536. Its totient is φ = 7560000.

The previous prime is 22131953. The next prime is 22131983. The reversal of 22131970 is 7913122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29095 + ... + 29845.

It is an arithmetic number, because the mean of its divisors is an integer number (1428048).

Almost surely, 2^22131970 is an apocalyptic number.

22131970 is an abundant number, since it is smaller than the sum of its proper divisors (23565566).

22131970 is a wasteful number, since it uses less digits than its factorization.

22131970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 22131970 is about 4704.4627748554. The cubic root of 22131970 is about 280.7630969786.

The spelling of 22131970 in words is "twenty-two million, one hundred thirty-one thousand, nine hundred seventy".