100111101010212 has 48 divisors (see below), whose sum is σ = 234076214034432. Its totient is φ = 33301309685280.

The previous prime is 100111101010211. The next prime is 100111101010229. The reversal of 100111101010212 is 212010101111001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (100111101010211) 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, 20843037 + ... + 25192347.

It is an arithmetic number, because the mean of its divisors is an integer number (4876587792384).

Almost surely, 2^{100111101010212} is an apocalyptic number.

100111101010212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100111101010212 is an abundant number, since it is smaller than the sum of its proper divisors (133965113024220).

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

100111101010212 is a wasteful number, since it uses less digits than its factorization.

100111101010212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4353288 (or 4353286 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 100111101010212 its reverse (212010101111001), we get a palindrome (312121202121213).

The spelling of 100111101010212 in words is "one hundred trillion, one hundred eleven billion, one hundred one million, ten thousand, two hundred twelve".