100020021111100 has 36 divisors (see below), whose sum is σ = 217226296486584. Its totient is φ = 39974303250880.

The previous prime is 100020021111071. The next prime is 100020021111167. The reversal of 100020021111100 is 1111120020001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 421195627 + ... + 421433026.

It is an arithmetic number, because the mean of its divisors is an integer number (6034063791294).

Almost surely, 2^{100020021111100} is an apocalyptic number.

100020021111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100020021111100 is an abundant number, since it is smaller than the sum of its proper divisors (117206275375484).

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

100020021111100 is a wasteful number, since it uses less digits than its factorization.

100020021111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842629854 (or 842629847 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 100020021111100 its reverse (1111120020001), we get a palindrome (101131141131101).

The spelling of 100020021111100 in words is "one hundred trillion, twenty billion, twenty-one million, one hundred eleven thousand, one hundred".