205122310404 has 48 divisors (see below), whose sum is σ = 522224947776. Its totient is φ = 62146915200.

The previous prime is 205122310397. The next prime is 205122310439. The reversal of 205122310404 is 404013221502.

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, 597474 + ... + 875910.

It is an arithmetic number, because the mean of its divisors is an integer number (10879686412).

Almost surely, 2^205122310404 is an apocalyptic number.

It is an amenable number.

205122310404 is an abundant number, since it is smaller than the sum of its proper divisors (317102637372).

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

205122310404 is a wasteful number, since it uses less digits than its factorization.

205122310404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284036 (or 284034 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 205122310404 its reverse (404013221502), we get a palindrome (609135531906).

The spelling of 205122310404 in words is "two hundred five billion, one hundred twenty-two million, three hundred ten thousand, four hundred four".