22102112212012 has 12 divisors (see below), whose sum is σ = 44204224424080. Its totient is φ = 9472333805136.

The previous prime is 22102112211997. The next prime is 22102112212177. The reversal of 22102112212012 is 21021221120122.

22102112212012 is an admirable 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, 394680575187 + ... + 394680575242.

Almost surely, 2^{22102112212012} is an apocalyptic number.

It is an amenable number.

22102112212012 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.

22102112212012 is a wasteful number, since it uses less digits than its factorization.

22102112212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789361150440 (or 789361150438 counting only the distinct ones).

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

Adding to 22102112212012 its reverse (21021221120122), we get a palindrome (43123333332134).

The spelling of 22102112212012 in words is "twenty-two trillion, one hundred two billion, one hundred twelve million, two hundred twelve thousand, twelve".