100211211212 has 24 divisors (see below), whose sum is σ = 205083411456. Its totient is φ = 41948878608.

The previous prime is 100211211179. The next prime is 100211211271. The reversal of 100211211212 is 212112112001.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41614748 + ... + 41617155.

It is an arithmetic number, because the mean of its divisors is an integer number (8545142144).

Almost surely, 2^100211211212 is an apocalyptic number.

It is an amenable number.

100211211212 is an abundant number, since it is smaller than the sum of its proper divisors (104872200244).

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

100211211212 is a wasteful number, since it uses less digits than its factorization.

100211211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83231957 (or 83231955 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 100211211212 its reverse (212112112001), we get a palindrome (312323323213).

The spelling of 100211211212 in words is "one hundred billion, two hundred eleven million, two hundred eleven thousand, two hundred twelve".