100221121120 has 24 divisors (see below), whose sum is σ = 236772399024. Its totient is φ = 40088448384.

The previous prime is 100221121103. The next prime is 100221121181. The reversal of 100221121120 is 21121122001.

It is a self number, because there is not a number n which added to its sum of digits gives 100221121120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313190844 + ... + 313191163.

It is an arithmetic number, because the mean of its divisors is an integer number (9865516626).

Almost surely, 2^100221121120 is an apocalyptic number.

100221121120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100221121120 is an abundant number, since it is smaller than the sum of its proper divisors (136551277904).

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

100221121120 is an equidigital number, since it uses as much as digits as its factorization.

100221121120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626382022 (or 626382014 counting only the distinct ones).

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

Adding to 100221121120 its reverse (21121122001), we get a palindrome (121342243121).

The spelling of 100221121120 in words is "one hundred billion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred twenty".