222211111122012 has 12 divisors (see below), whose sum is σ = 518492592618056. Its totient is φ = 74070370374000.

The previous prime is 222211111121957. The next prime is 222211111122029. The reversal of 222211111122012 is 210221111112222.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 222211111122012.

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, 9258796296739 + ... + 9258796296762.

Almost surely, 2^{222211111122012} is an apocalyptic number.

It is an amenable number.

222211111122012 is an abundant number, since it is smaller than the sum of its proper divisors (296281481496044).

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

222211111122012 is a wasteful number, since it uses less digits than its factorization.

222211111122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18517592593508 (or 18517592593506 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 222211111122012 its reverse (210221111112222), we get a palindrome (432432222234234).

The spelling of 222211111122012 in words is "two hundred twenty-two trillion, two hundred eleven billion, one hundred eleven million, one hundred twenty-two thousand, twelve".