100120112000 has 64 divisors (see below), whose sum is σ = 248923668240. Its totient is φ = 40048038400.

The previous prime is 100120111979. The next prime is 100120112087. The reversal of 100120112000 is 211021001.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

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, 3112754 + ... + 3144753.

Almost surely, 2^100120112000 is an apocalyptic number.

100120112000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100120112000 is an abundant number, since it is smaller than the sum of its proper divisors (148803556240).

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

100120112000 is an frugal number, since it uses more digits than its factorization.

100120112000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6257536 (or 6257514 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 100120112000 its reverse (211021001), we get a palindrome (100331133001).

Subtracting from 100120112000 its reverse (211021001), we obtain a palindrome (99909090999).

The spelling of 100120112000 in words is "one hundred billion, one hundred twenty million, one hundred twelve thousand".