100512056220 has 48 divisors (see below), whose sum is σ = 289040081568. Its totient is φ = 26078803200.

The previous prime is 100512056219. The next prime is 100512056221. The reversal of 100512056220 is 22650215001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (100512056219) and next prime (100512056221).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100512056221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22635631 + ... + 22640070.

It is an arithmetic number, because the mean of its divisors is an integer number (6021668366).

Almost surely, 2^100512056220 is an apocalyptic number.

100512056220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100512056220 is an abundant number, since it is smaller than the sum of its proper divisors (188528025348).

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

100512056220 is a wasteful number, since it uses less digits than its factorization.

100512056220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45275750 (or 45275748 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 100512056220 in words is "one hundred billion, five hundred twelve million, fifty-six thousand, two hundred twenty".