204223442225 has 96 divisors (see below), whose sum is σ = 291804180480. Its totient is φ = 140422176000.

The previous prime is 204223442219. The next prime is 204223442243. The reversal of 204223442225 is 522244322402.

It is not a de Polignac number, because 204223442225 - 2²⁸ = 203955006769 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 204223442191 and 204223442200.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 87013502 + ... + 87015848.

It is an arithmetic number, because the mean of its divisors is an integer number (3039626880).

Almost surely, 2^204223442225 is an apocalyptic number.

204223442225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204223442225 is a deficient number, since it is larger than the sum of its proper divisors (87580738255).

204223442225 is a wasteful number, since it uses less digits than its factorization.

204223442225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2631 (or 2626 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 32.

Adding to 204223442225 its reverse (522244322402), we get a palindrome (726467764627).

The spelling of 204223442225 in words is "two hundred four billion, two hundred twenty-three million, four hundred forty-two thousand, two hundred twenty-five".