204122422111220 has 48 divisors (see below), whose sum is σ = 453966907596048. Its totient is φ = 76830054727680.

The previous prime is 204122422111213. The next prime is 204122422111241. The reversal of 204122422111220 is 22111224221402.

It can be written as a sum of positive squares in 8 ways, for example, as 40005979200784 + 164116442910436 = 6325028^2 + 12810794^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 204122422111220.

It is a congruent number.

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, 60999221 + ... + 64258460.

It is an arithmetic number, because the mean of its divisors is an integer number (9457643908251).

Almost surely, 2^{204122422111220} is an apocalyptic number.

204122422111220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204122422111220 is an abundant number, since it is smaller than the sum of its proper divisors (249844485484828).

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

204122422111220 is a wasteful number, since it uses less digits than its factorization.

204122422111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125262500 (or 125262498 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

Adding to 204122422111220 its reverse (22111224221402), we get a palindrome (226233646332622).

The spelling of 204122422111220 in words is "two hundred four trillion, one hundred twenty-two billion, four hundred twenty-two million, one hundred eleven thousand, two hundred twenty".