204220403420124 has 192 divisors, whose sum is σ = 633080897648640. Its totient is φ = 49742070174720.

The previous prime is 204220403420113. The next prime is 204220403420171. The reversal of 204220403420124 is 421024304022402.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 204220403420091 and 204220403420100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 139462807 + ... + 140919534.

It is an arithmetic number, because the mean of its divisors is an integer number (3297296341920).

Almost surely, 2^{204220403420124} is an apocalyptic number.

It is an amenable number.

204220403420124 is an abundant number, since it is smaller than the sum of its proper divisors (428860494228516).

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

204220403420124 is a wasteful number, since it uses less digits than its factorization.

204220403420124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280382420 (or 280382418 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 204220403420124 its reverse (421024304022402), we get a palindrome (625244707442526).

The spelling of 204220403420124 in words is "two hundred four trillion, two hundred twenty billion, four hundred three million, four hundred twenty thousand, one hundred twenty-four".