204422231 has 12 divisors (see below), whose sum is σ = 223860240. Its totient is φ = 186563520.

The previous prime is 204422203. The next prime is 204422233. The reversal of 204422231 is 132224402.

It is not a de Polignac number, because 204422231 - 2⁶ = 204422167 is a prime.

It is a super-2 number, since 2×204422231² = 83576897054034722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204422233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8246 + ... + 21836.

It is an arithmetic number, because the mean of its divisors is an integer number (18655020).

Almost surely, 2^204422231 is an apocalyptic number.

204422231 is a deficient number, since it is larger than the sum of its proper divisors (19438009).

204422231 is a wasteful number, since it uses less digits than its factorization.

204422231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13706 (or 13693 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 204422231 is about 14297.6302581931. The cubic root of 204422231 is about 589.0823914805.

Adding to 204422231 its reverse (132224402), we get a palindrome (336646633).

The spelling of 204422231 in words is "two hundred four million, four hundred twenty-two thousand, two hundred thirty-one".