22200121221112 has 8 divisors (see below), whose sum is σ = 41625227289600. Its totient is φ = 11100060610552.

The previous prime is 22200121221073. The next prime is 22200121221133. The reversal of 22200121221112 is 21112212100222.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22200121221112.

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, 1387507576312 + ... + 1387507576327.

It is an arithmetic number, because the mean of its divisors is an integer number (5203153411200).

Almost surely, 2^{22200121221112} is an apocalyptic number.

It is an amenable number.

22200121221112 is a deficient number, since it is larger than the sum of its proper divisors (19425106068488).

22200121221112 is a wasteful number, since it uses less digits than its factorization.

22200121221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2775015152645 (or 2775015152641 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22200121221112 its reverse (21112212100222), we get a palindrome (43312333321334).

The spelling of 22200121221112 in words is "twenty-two trillion, two hundred billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred twelve".