204412402021 has 8 divisors (see below), whose sum is σ = 208785519360. Its totient is φ = 200040281328.

The previous prime is 204412401983. The next prime is 204412402049. The reversal of 204412402021 is 120204214402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 204412402021 - 2⁹ = 204412401509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204412401983 and 204412402001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204412402321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172995 + ... + 662383.

It is an arithmetic number, because the mean of its divisors is an integer number (26098189920).

Almost surely, 2^204412402021 is an apocalyptic number.

It is an amenable number.

204412402021 is a deficient number, since it is larger than the sum of its proper divisors (4373117339).

204412402021 is an equidigital number, since it uses as much as digits as its factorization.

204412402021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498323.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 204412402021 its reverse (120204214402), we get a palindrome (324616616423).

The spelling of 204412402021 in words is "two hundred four billion, four hundred twelve million, four hundred two thousand, twenty-one".