100100021100 has 36 divisors (see below), whose sum is σ = 289622728584. Its totient is φ = 26693338880.

The previous prime is 100100021083. The next prime is 100100021107. The reversal of 100100021100 is 1120001001.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is not an unprimeable number, because it can be changed into a prime (100100021107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166833069 + ... + 166833668.

It is an arithmetic number, because the mean of its divisors is an integer number (8045075794).

Almost surely, 2^100100021100 is an apocalyptic number.

100100021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100100021100 is an abundant number, since it is smaller than the sum of its proper divisors (189522707484).

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

100100021100 is a wasteful number, since it uses less digits than its factorization.

100100021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333666754 (or 333666747 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 100100021100 its reverse (1120001001), we get a palindrome (101220022101).

The spelling of 100100021100 in words is "one hundred billion, one hundred million, twenty-one thousand, one hundred".