22223538931 has 24 divisors (see below), whose sum is σ = 24567162032. Its totient is φ = 20088129600.

The previous prime is 22223538913. The next prime is 22223538973. The reversal of 22223538931 is 13983532222.

It is a de Polignac number, because none of the positive numbers 2^k-22223538931 is a prime.

It is a super-2 number, since 2×22223538931² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22223538731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29357005 + ... + 29357761.

Almost surely, 2^22223538931 is an apocalyptic number.

22223538931 is a deficient number, since it is larger than the sum of its proper divisors (2343623101).

22223538931 is a wasteful number, since it uses less digits than its factorization.

22223538931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843 (or 1832 counting only the distinct ones).

The product of its digits is 155520, while the sum is 40.

The spelling of 22223538931 in words is "twenty-two billion, two hundred twenty-three million, five hundred thirty-eight thousand, nine hundred thirty-one".