22331031012 has 36 divisors (see below), whose sum is σ = 56595302400. Its totient is φ = 7424237232.

The previous prime is 22331030927. The next prime is 22331031043. The reversal of 22331031012 is 21013013322.

22331031012 is a `hidden beast` number, since 22 + 331 + 0 + 310 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 796012 + ... + 823587.

Almost surely, 2^22331031012 is an apocalyptic number.

It is an amenable number.

22331031012 is an abundant number, since it is smaller than the sum of its proper divisors (34264271388).

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

22331031012 is a wasteful number, since it uses less digits than its factorization.

22331031012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619992 (or 1619987 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 22331031012 its reverse (21013013322), we get a palindrome (43344044334).

The spelling of 22331031012 in words is "twenty-two billion, three hundred thirty-one million, thirty-one thousand, twelve".