22212715388 has 12 divisors (see below), whose sum is σ = 38940333432. Its totient is φ = 11086905840.

The previous prime is 22212715373. The next prime is 22212715409. The reversal of 22212715388 is 88351721222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4860395 + ... + 4864962.

It is an arithmetic number, because the mean of its divisors is an integer number (3245027786).

Almost surely, 2^22212715388 is an apocalyptic number.

It is an amenable number.

22212715388 is a deficient number, since it is larger than the sum of its proper divisors (16727618044).

22212715388 is a wasteful number, since it uses less digits than its factorization.

22212715388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9725932 (or 9725930 counting only the distinct ones).

The product of its digits is 107520, while the sum is 41.

The spelling of 22212715388 in words is "twenty-two billion, two hundred twelve million, seven hundred fifteen thousand, three hundred eighty-eight".