204202122 has 16 divisors (see below), whose sum is σ = 417094272. Its totient is φ = 66619040.

The previous prime is 204202109. The next prime is 204202129. The reversal of 204202122 is 221202402.

It is not an unprimeable number, because it can be changed into a prime (204202129) 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, 361779 + ... + 362342.

It is an arithmetic number, because the mean of its divisors is an integer number (26068392).

Almost surely, 2^204202122 is an apocalyptic number.

204202122 is an abundant number, since it is smaller than the sum of its proper divisors (212892150).

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

204202122 is a wasteful number, since it uses less digits than its factorization.

204202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724173.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 204202122 is about 14289.9307905952. The cubic root of 204202122 is about 588.8708865955.

Adding to 204202122 its reverse (221202402), we get a palindrome (425404524).

The spelling of 204202122 in words is "two hundred four million, two hundred two thousand, one hundred twenty-two".