202120100112204 has 18 divisors (see below), whose sum is σ = 510914697505940. Its totient is φ = 67373366704056.

The previous prime is 202120100112197. The next prime is 202120100112209. The reversal of 202120100112204 is 402211001021202.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (202120100112209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2807223612634 + ... + 2807223612705.

Almost surely, 2^{202120100112204} is an apocalyptic number.

It is an amenable number.

202120100112204 is an abundant number, since it is smaller than the sum of its proper divisors (308794597393736).

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

202120100112204 is a wasteful number, since it uses less digits than its factorization.

202120100112204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5614447225349 (or 5614447225344 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202120100112204 its reverse (402211001021202), we get a palindrome (604331101133406).

The spelling of 202120100112204 in words is "two hundred two trillion, one hundred twenty billion, one hundred million, one hundred twelve thousand, two hundred four".