22400031012 has 24 divisors (see below), whose sum is σ = 52648251936. Its totient is φ = 7412175168.

The previous prime is 22400031001. The next prime is 22400031091. The reversal of 22400031012 is 21013000422.

It is a super-2 number, since 2×22400031012² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22400030982 and 22400031000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6811018 + ... + 6814305.

It is an arithmetic number, because the mean of its divisors is an integer number (2193677164).

Almost surely, 2^22400031012 is an apocalyptic number.

It is an amenable number.

22400031012 is an abundant number, since it is smaller than the sum of its proper divisors (30248220924).

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

22400031012 is a wasteful number, since it uses less digits than its factorization.

22400031012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13625467 (or 13625465 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 22400031012 its reverse (21013000422), we get a palindrome (43413031434).

The spelling of 22400031012 in words is "twenty-two billion, four hundred million, thirty-one thousand, twelve".