22200111111212 has 12 divisors (see below), whose sum is σ = 38866790016096. Its totient is φ = 11095313963760.

The previous prime is 22200111111197. The next prime is 22200111111223. The reversal of 22200111111212 is 21211111100222.

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, 1185387428 + ... + 1185406155.

It is an arithmetic number, because the mean of its divisors is an integer number (3238899168008).

Almost surely, 2^{22200111111212} is an apocalyptic number.

It is an amenable number.

22200111111212 is a deficient number, since it is larger than the sum of its proper divisors (16666678904884).

22200111111212 is a wasteful number, since it uses less digits than its factorization.

22200111111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2370795928 (or 2370795926 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22200111111212 its reverse (21211111100222), we get a palindrome (43411222211434).

The spelling of 22200111111212 in words is "twenty-two trillion, two hundred billion, one hundred eleven million, one hundred eleven thousand, two hundred twelve".