22212211100212 has 12 divisors (see below), whose sum is σ = 44424422200480. Its totient is φ = 9519519042936.

The previous prime is 22212211100207. The next prime is 22212211100231. The reversal of 22212211100212 is 21200111221222.

22212211100212 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 22212211100212.

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, 396646626762 + ... + 396646626817.

Almost surely, 2^{22212211100212} is an apocalyptic number.

It is an amenable number.

22212211100212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22212211100212 is a wasteful number, since it uses less digits than its factorization.

22212211100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793293253590 (or 793293253588 counting only the distinct ones).

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

Adding to 22212211100212 its reverse (21200111221222), we get a palindrome (43412322321434).

The spelling of 22212211100212 in words is "twenty-two trillion, two hundred twelve billion, two hundred eleven million, one hundred thousand, two hundred twelve".