22215730712 has 16 divisors (see below), whose sum is σ = 47605137360. Its totient is φ = 9521027424.

The previous prime is 22215730711. The next prime is 22215730729. The reversal of 22215730712 is 21703751222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22215730711) by changing a digit.

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, 198354683 + ... + 198354794.

It is an arithmetic number, because the mean of its divisors is an integer number (2975321085).

Almost surely, 2^22215730712 is an apocalyptic number.

It is an amenable number.

22215730712 is an abundant number, since it is smaller than the sum of its proper divisors (25389406648).

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

22215730712 is a wasteful number, since it uses less digits than its factorization.

22215730712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396709490 (or 396709486 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The spelling of 22215730712 in words is "twenty-two billion, two hundred fifteen million, seven hundred thirty thousand, seven hundred twelve".