20202211112100 has 36 divisors (see below), whose sum is σ = 58451730818544. Its totient is φ = 5387256296480.

The previous prime is 20202211112087. The next prime is 20202211112119. The reversal of 20202211112100 is 121111220202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20202211112100.

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, 33670351554 + ... + 33670352153.

It is an arithmetic number, because the mean of its divisors is an integer number (1623659189404).

Almost surely, 2^{20202211112100} is an apocalyptic number.

20202211112100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20202211112100 is an abundant number, since it is smaller than the sum of its proper divisors (38249519706444).

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

20202211112100 is a wasteful number, since it uses less digits than its factorization.

20202211112100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67340703724 (or 67340703717 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20202211112100 its reverse (121111220202), we get a palindrome (20323322332302).

The spelling of 20202211112100 in words is "twenty trillion, two hundred two billion, two hundred eleven million, one hundred twelve thousand, one hundred".