22121010011012 has 48 divisors (see below), whose sum is σ = 43048812623040. Its totient is φ = 9861101443200.

The previous prime is 22121010010973. The next prime is 22121010011027. The reversal of 22121010011012 is 21011001012122.

It is a super-2 number, since 2×22121010011012² (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 15 ways as a sum of consecutive naturals, for example, 9027263 + ... + 11213094.

It is an arithmetic number, because the mean of its divisors is an integer number (896850262980).

Almost surely, 2^{22121010011012} is an apocalyptic number.

22121010011012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22121010011012 is a deficient number, since it is larger than the sum of its proper divisors (20927802612028).

22121010011012 is a wasteful number, since it uses less digits than its factorization.

22121010011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20240852 (or 20240850 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22121010011012 its reverse (21011001012122), we get a palindrome (43132011023134).

The spelling of 22121010011012 in words is "twenty-two trillion, one hundred twenty-one billion, ten million, eleven thousand, twelve".