100220113212 has 48 divisors (see below), whose sum is σ = 236877527040. Its totient is φ = 32974014528.

The previous prime is 100220113031. The next prime is 100220113247. The reversal of 100220113212 is 212311022001.

It is a junction number, because it is equal to n+sod(n) for n = 100220113191 and 100220113200.

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, 3610378 + ... + 3638030.

It is an arithmetic number, because the mean of its divisors is an integer number (4934948480).

Almost surely, 2^100220113212 is an apocalyptic number.

100220113212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100220113212 is an abundant number, since it is smaller than the sum of its proper divisors (136657413828).

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

100220113212 is a wasteful number, since it uses less digits than its factorization.

100220113212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31562 (or 31560 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 100220113212 its reverse (212311022001), we get a palindrome (312531135213).

The spelling of 100220113212 in words is "one hundred billion, two hundred twenty million, one hundred thirteen thousand, two hundred twelve".