22031400012 has 24 divisors (see below), whose sum is σ = 52249332912. Its totient is φ = 7223409600.

The previous prime is 22031399941. The next prime is 22031400077. The reversal of 22031400012 is 21000413022.

It is a junction number, because it is equal to n+sod(n) for n = 22031399964 and 22031400000.

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, 15048039 + ... + 15049502.

It is an arithmetic number, because the mean of its divisors is an integer number (2177055538).

Almost surely, 2^22031400012 is an apocalyptic number.

It is an amenable number.

22031400012 is an abundant number, since it is smaller than the sum of its proper divisors (30217932900).

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

22031400012 is a wasteful number, since it uses less digits than its factorization.

22031400012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30097609 (or 30097607 counting only the distinct ones).

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

Adding to 22031400012 its reverse (21000413022), we get a palindrome (43031813034).

The spelling of 22031400012 in words is "twenty-two billion, thirty-one million, four hundred thousand, twelve".