22500021112 has 8 divisors (see below), whose sum is σ = 42187539600. Its totient is φ = 11250010552.

The previous prime is 22500021107. The next prime is 22500021139. The reversal of 22500021112 is 21112000522.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1406251312 + ... + 1406251327.

It is an arithmetic number, because the mean of its divisors is an integer number (5273442450).

Almost surely, 2^22500021112 is an apocalyptic number.

It is an amenable number.

22500021112 is a deficient number, since it is larger than the sum of its proper divisors (19687518488).

22500021112 is a wasteful number, since it uses less digits than its factorization.

22500021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2812502645 (or 2812502641 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 22500021112 its reverse (21112000522), we get a palindrome (43612021634).

The spelling of 22500021112 in words is "twenty-two billion, five hundred million, twenty-one thousand, one hundred twelve".