204221234403 has 6 divisors (see below), whose sum is σ = 294986227484. Its totient is φ = 136147489596.

The previous prime is 204221234389. The next prime is 204221234431. The reversal of 204221234403 is 304432122402.

204221234403 is a `hidden beast` number, since 2 + 0 + 4 + 2 + 21 + 234 + 403 = 666.

It is not a de Polignac number, because 204221234403 - 2²² = 204217040099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204221234603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11345624125 + ... + 11345624142.

Almost surely, 2^204221234403 is an apocalyptic number.

204221234403 is a deficient number, since it is larger than the sum of its proper divisors (90764993081).

204221234403 is a wasteful number, since it uses less digits than its factorization.

204221234403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22691248273 (or 22691248270 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 204221234403 its reverse (304432122402), we get a palindrome (508653356805).

The spelling of 204221234403 in words is "two hundred four billion, two hundred twenty-one million, two hundred thirty-four thousand, four hundred three".