100112211220 has 48 divisors (see below), whose sum is σ = 243310717440. Its totient is φ = 33889699584.

The previous prime is 100112211203. The next prime is 100112211253. The reversal of 100112211220 is 22112211001.

100112211220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 100112211220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4514809 + ... + 4536928.

It is an arithmetic number, because the mean of its divisors is an integer number (5068973280).

Almost surely, 2^100112211220 is an apocalyptic number.

100112211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100112211220 is an abundant number, since it is smaller than the sum of its proper divisors (143198506220).

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

100112211220 is a wasteful number, since it uses less digits than its factorization.

100112211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9051832 (or 9051830 counting only the distinct ones).

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

Adding to 100112211220 its reverse (22112211001), we get a palindrome (122224422221).

The spelling of 100112211220 in words is "one hundred billion, one hundred twelve million, two hundred eleven thousand, two hundred twenty".