100111010021100 has 108 divisors (see below), whose sum is σ = 337930276088496. Its totient is φ = 24642710156160.

The previous prime is 100111010021059. The next prime is 100111010021101. The reversal of 100111010021100 is 1120010111001.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (100111010021101) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4278236592 + ... + 4278259991.

Almost surely, 2^{100111010021100} is an apocalyptic number.

100111010021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100111010021100 is an abundant number, since it is smaller than the sum of its proper divisors (237819266067396).

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

100111010021100 is a wasteful number, since it uses less digits than its factorization.

100111010021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8556496616 (or 8556496606 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 100111010021100 its reverse (1120010111001), we get a palindrome (101231020132101).

The spelling of 100111010021100 in words is "one hundred trillion, one hundred eleven billion, ten million, twenty-one thousand, one hundred".