204021122024 has 32 divisors (see below), whose sum is σ = 405088403400. Its totient is φ = 95998924800.

The previous prime is 204021122003. The next prime is 204021122033. The reversal of 204021122024 is 420221120402.

It can be written as a sum of positive squares in 4 ways, for example, as 145351562500 + 58669559524 = 381250^2 + 242218^2 .

It is a junction number, because it is equal to n+sod(n) for n = 204021121987 and 204021122005.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1170974 + ... + 1333874.

Almost surely, 2^204021122024 is an apocalyptic number.

It is an amenable number.

204021122024 is a deficient number, since it is larger than the sum of its proper divisors (201067281376).

204021122024 is a wasteful number, since it uses less digits than its factorization.

204021122024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172133 (or 172129 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 204021122024 its reverse (420221120402), we get a palindrome (624242242426).

The spelling of 204021122024 in words is "two hundred four billion, twenty-one million, one hundred twenty-two thousand, twenty-four".