204122115 has 12 divisors (see below), whose sum is σ = 353811744. Its totient is φ = 108865104.

The previous prime is 204122101. The next prime is 204122143. The reversal of 204122115 is 511221402.

It is not a de Polignac number, because 204122115 - 2⁴ = 204122099 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2267979 + ... + 2268068.

It is an arithmetic number, because the mean of its divisors is an integer number (29484312).

Almost surely, 2^204122115 is an apocalyptic number.

204122115 is a deficient number, since it is larger than the sum of its proper divisors (149689629).

204122115 is a wasteful number, since it uses less digits than its factorization.

204122115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4536058 (or 4536055 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 204122115 is about 14287.1310975997. The cubic root of 204122115 is about 588.7939694263.

Adding to 204122115 its reverse (511221402), we get a palindrome (715343517).

The spelling of 204122115 in words is "two hundred four million, one hundred twenty-two thousand, one hundred fifteen".