204222226 has 16 divisors (see below), whose sum is σ = 330493464. Its totient is φ = 94086144.

The previous prime is 204222209. The next prime is 204222229. The reversal of 204222226 is 622222402.

It can be written as a sum of positive squares in 4 ways, for example, as 134583201 + 69639025 = 11601^2 + 8345^2 .

It is a junction number, because it is equal to n+sod(n) for n = 204222197 and 204222206.

It is not an unprimeable number, because it can be changed into a prime (204222229) 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, 8196 + ... + 21808.

Almost surely, 2^204222226 is an apocalyptic number.

204222226 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

204222226 is a deficient number, since it is larger than the sum of its proper divisors (126271238).

204222226 is a wasteful number, since it uses less digits than its factorization.

204222226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14205.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 204222226 is about 14290.6342056607. The cubic root of 204222226 is about 588.8902110304.

Adding to 204222226 its reverse (622222402), we get a palindrome (826444628).

The spelling of 204222226 in words is "two hundred four million, two hundred twenty-two thousand, two hundred twenty-six".