22221031012 has 24 divisors (see below), whose sum is σ = 42253917440. Its totient is φ = 10186210080.

The previous prime is 22221031003. The next prime is 22221031033. The reversal of 22221031012 is 21013012222.

It is a happy number.

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, 4713483 + ... + 4718194.

Almost surely, 2^22221031012 is an apocalyptic number.

It is an amenable number.

22221031012 is a deficient number, since it is larger than the sum of its proper divisors (20032886428).

22221031012 is a wasteful number, since it uses less digits than its factorization.

22221031012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9431731 (or 9431729 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22221031012 its reverse (21013012222), we get a palindrome (43234043234).

The spelling of 22221031012 in words is "twenty-two billion, two hundred twenty-one million, thirty-one thousand, twelve".