20100222112012 has 24 divisors (see below), whose sum is σ = 42316257079040. Its totient is φ = 8160992436240.

The previous prime is 20100222111971. The next prime is 20100222112073. The reversal of 20100222112012 is 21021122200102.

It is a happy number.

It is a super-2 number, since 2×20100222112012² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18891185664 + ... + 18891186727.

Almost surely, 2^{20100222112012} is an apocalyptic number.

It is an amenable number.

20100222112012 is an abundant number, since it is smaller than the sum of its proper divisors (22216034967028).

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

20100222112012 is a wasteful number, since it uses less digits than its factorization.

20100222112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37782372421 (or 37782372419 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20100222112012 its reverse (21021122200102), we get a palindrome (41121344312114).

The spelling of 20100222112012 in words is "twenty trillion, one hundred billion, two hundred twenty-two million, one hundred twelve thousand, twelve".