205004113122 has 32 divisors (see below), whose sum is σ = 421414785792. Its totient is φ = 66436464384.

The previous prime is 205004113087. The next prime is 205004113147. The reversal of 205004113122 is 221311400502.

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, 68058 + ... + 643925.

It is an arithmetic number, because the mean of its divisors is an integer number (13169212056).

Almost surely, 2^205004113122 is an apocalyptic number.

205004113122 is an abundant number, since it is smaller than the sum of its proper divisors (216410672670).

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

205004113122 is a wasteful number, since it uses less digits than its factorization.

205004113122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713322.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 205004113122 its reverse (221311400502), we get a palindrome (426315513624).

The spelling of 205004113122 in words is "two hundred five billion, four million, one hundred thirteen thousand, one hundred twenty-two".