100111022112012 has 24 divisors (see below), whose sum is σ = 233592828198912. Its totient is φ = 33370277379600.

The previous prime is 100111022111939. The next prime is 100111022112019. The reversal of 100111022112012 is 210211220111001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100111022111982 and 100111022112000.

It is not an unprimeable number, because it can be changed into a prime (100111022112019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1093164 + ... + 14192147.

It is an arithmetic number, because the mean of its divisors is an integer number (9733034508288).

Almost surely, 2^{100111022112012} is an apocalyptic number.

100111022112012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100111022112012 is an abundant number, since it is smaller than the sum of its proper divisors (133481806086900).

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

100111022112012 is a wasteful number, since it uses less digits than its factorization.

100111022112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15831109 (or 15831107 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 100111022112012 its reverse (210211220111001), we get a palindrome (310322242223013).

The spelling of 100111022112012 in words is "one hundred trillion, one hundred eleven billion, twenty-two million, one hundred twelve thousand, twelve".