100111122021000 has 64 divisors (see below), whose sum is σ = 312346700714880. Its totient is φ = 26696299204800.

The previous prime is 100111122020957. The next prime is 100111122021017. The reversal of 100111122021000 is 120221111001.

It is a super-2 number, since 2×100111122021000² (a number of 29 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16685184004 + ... + 16685190003.

It is an arithmetic number, because the mean of its divisors is an integer number (4880417198670).

Almost surely, 2^{100111122021000} is an apocalyptic number.

100111122021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100111122021000 is an abundant number, since it is smaller than the sum of its proper divisors (212235578693880).

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

100111122021000 is a wasteful number, since it uses less digits than its factorization.

100111122021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33370374031 (or 33370374017 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 100111122021000 its reverse (120221111001), we get a palindrome (100231343132001).

Subtracting from 100111122021000 its reverse (120221111001), we obtain a palindrome (99990900909999).

The spelling of 100111122021000 in words is "one hundred trillion, one hundred eleven billion, one hundred twenty-two million, twenty-one thousand".