22657121270 has 48 divisors (see below), whose sum is σ = 48450674880. Its totient is φ = 7602868224.

The previous prime is 22657121261. The next prime is 22657121299. The reversal of 22657121270 is 7212175622.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22657121270.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 468875 + ... + 514934.

It is an arithmetic number, because the mean of its divisors is an integer number (1009389060).

Almost surely, 2^22657121270 is an apocalyptic number.

22657121270 is an abundant number, since it is smaller than the sum of its proper divisors (25793553610).

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

22657121270 is a wasteful number, since it uses less digits than its factorization.

22657121270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983877 (or 983870 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

Adding to 22657121270 its reverse (7212175622), we get a palindrome (29869296892).

The spelling of 22657121270 in words is "twenty-two billion, six hundred fifty-seven million, one hundred twenty-one thousand, two hundred seventy".