22204307 has 2 divisors, whose sum is σ = 22204308. Its totient is φ = 22204306.

The previous prime is 22204253. The next prime is 22204313. The reversal of 22204307 is 70340222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22204307 - 2⁸ = 22204051 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22204207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11102153 + 11102154.

It is an arithmetic number, because the mean of its divisors is an integer number (11102154).

Almost surely, 2^22204307 is an apocalyptic number.

22204307 is a deficient number, since it is larger than the sum of its proper divisors (1).

22204307 is an equidigital number, since it uses as much as digits as its factorization.

22204307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 22204307 is about 4712.1446285105. The cubic root of 22204307 is about 281.0686500372.

Adding to 22204307 its reverse (70340222), we get a palindrome (92544529).

The spelling of 22204307 in words is "twenty-two million, two hundred four thousand, three hundred seven".