100122100212 has 48 divisors (see below), whose sum is σ = 236480090112. Its totient is φ = 32965357920.

The previous prime is 100122100097. The next prime is 100122100217. The reversal of 100122100212 is 212001221001.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100122100217) 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, 9746703 + ... + 9756969.

It is an arithmetic number, because the mean of its divisors is an integer number (4926668544).

Almost surely, 2^100122100212 is an apocalyptic number.

100122100212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100122100212 is an abundant number, since it is smaller than the sum of its proper divisors (136357989900).

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

100122100212 is a wasteful number, since it uses less digits than its factorization.

100122100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20148 (or 20146 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 100122100212 its reverse (212001221001), we get a palindrome (312123321213).

The spelling of 100122100212 in words is "one hundred billion, one hundred twenty-two million, one hundred thousand, two hundred twelve".