20101122001012 has 96 divisors (see below), whose sum is σ = 40832741779200. Its totient is φ = 8574960003072.

The previous prime is 20101122001001. The next prime is 20101122001019. The reversal of 20101122001012 is 21010022110102.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 20101122000983 and 20101122001001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101122001019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51073314 + ... + 51465382.

It is an arithmetic number, because the mean of its divisors is an integer number (425341060200).

Almost surely, 2^{20101122001012} is an apocalyptic number.

It is an amenable number.

20101122001012 is an abundant number, since it is smaller than the sum of its proper divisors (20731619778188).

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

20101122001012 is a wasteful number, since it uses less digits than its factorization.

20101122001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393145 (or 393143 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20101122001012 its reverse (21010022110102), we get a palindrome (41111144111114).

The spelling of 20101122001012 in words is "twenty trillion, one hundred one billion, one hundred twenty-two million, one thousand, twelve".