20210122200204 has 120 divisors (see below), whose sum is σ = 56164583890800. Its totient is φ = 6318954115200.

The previous prime is 20210122200199. The next prime is 20210122200211. The reversal of 20210122200204 is 40200222101202.

20210122200204 is a `hidden beast` number, since 20 + 210 + 12 + 220 + 0 + 204 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15630699 + ... + 16874210.

It is an arithmetic number, because the mean of its divisors is an integer number (468038199090).

Almost surely, 2^{20210122200204} is an apocalyptic number.

It is an amenable number.

20210122200204 is an abundant number, since it is smaller than the sum of its proper divisors (35954461690596).

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

20210122200204 is a wasteful number, since it uses less digits than its factorization.

20210122200204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32505045 (or 32505034 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20210122200204 its reverse (40200222101202), we get a palindrome (60410344301406).

The spelling of 20210122200204 in words is "twenty trillion, two hundred ten billion, one hundred twenty-two million, two hundred thousand, two hundred four".