22400204031 has 12 divisors (see below), whose sum is σ = 32652694360. Its totient is φ = 14796464400.

The previous prime is 22400204023. The next prime is 22400204053. The reversal of 22400204031 is 13040200422.

22400204031 is a `hidden beast` number, since 2 + 240 + 0 + 20 + 403 + 1 = 666.

It is not a de Polignac number, because 22400204031 - 2³ = 22400204023 is a prime.

It is a super-2 number, since 2×22400204031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22400203995 and 22400204013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22400204131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11416045 + ... + 11418006.

Almost surely, 2^22400204031 is an apocalyptic number.

22400204031 is a deficient number, since it is larger than the sum of its proper divisors (10252490329).

22400204031 is a wasteful number, since it uses less digits than its factorization.

22400204031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22834166 (or 22834163 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22400204031 its reverse (13040200422), we get a palindrome (35440404453).

The spelling of 22400204031 in words is "twenty-two billion, four hundred million, two hundred four thousand, thirty-one".