22031113012 has 12 divisors (see below), whose sum is σ = 38557227940. Its totient is φ = 11014762176.

The previous prime is 22031113009. The next prime is 22031113043. The reversal of 22031113012 is 21031113022.

It can be written as a sum of positive squares in 2 ways, for example, as 5885344656 + 16145768356 = 76716^2 + 127066^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133833 + ... + 248944.

Almost surely, 2^22031113012 is an apocalyptic number.

It is an amenable number.

22031113012 is a deficient number, since it is larger than the sum of its proper divisors (16526114928).

22031113012 is a wasteful number, since it uses less digits than its factorization.

22031113012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397170 (or 397168 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 22031113012 its reverse (21031113022), we get a palindrome (43062226034).

The spelling of 22031113012 in words is "twenty-two billion, thirty-one million, one hundred thirteen thousand, twelve".