100113312220 has 24 divisors (see below), whose sum is σ = 217487541600. Its totient is φ = 38664451392.

The previous prime is 100113312203. The next prime is 100113312227. The reversal of 100113312220 is 22213311001.

It is a junction number, because it is equal to n+sod(n) for n = 100113312194 and 100113312203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100113312227) 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, 86304000 + ... + 86305159.

It is an arithmetic number, because the mean of its divisors is an integer number (9061980900).

Almost surely, 2^100113312220 is an apocalyptic number.

100113312220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100113312220 is an abundant number, since it is smaller than the sum of its proper divisors (117374229380).

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

100113312220 is a wasteful number, since it uses less digits than its factorization.

100113312220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172609197 (or 172609195 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 100113312220 its reverse (22213311001), we get a palindrome (122326623221).

The spelling of 100113312220 in words is "one hundred billion, one hundred thirteen million, three hundred twelve thousand, two hundred twenty".