21122102000012 has 192 divisors, whose sum is σ = 45985519843200. Its totient is φ = 8376361943040.

The previous prime is 21122102000011. The next prime is 21122102000093. The reversal of 21122102000012 is 21000020122112.

It is a super-2 number, since 2×21122102000012² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21122102000011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 253729148 + ... + 253812380.

It is an arithmetic number, because the mean of its divisors is an integer number (239507915850).

Almost surely, 2^{21122102000012} is an apocalyptic number.

It is an amenable number.

21122102000012 is an abundant number, since it is smaller than the sum of its proper divisors (24863417843188).

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

21122102000012 is a wasteful number, since it uses less digits than its factorization.

21122102000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83836 (or 83834 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21122102000012 its reverse (21000020122112), we get a palindrome (42122122122124).

The spelling of 21122102000012 in words is "twenty-one trillion, one hundred twenty-two billion, one hundred two million, twelve", and thus it is an aban number.