22204426649 has 2 divisors, whose sum is σ = 22204426650. Its totient is φ = 22204426648.

The previous prime is 22204426511. The next prime is 22204426669. The reversal of 22204426649 is 94662440222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11678692624 + 10525734025 = 108068^2 + 102595^2 .

It is a cyclic number.

It is not a de Polignac number, because 22204426649 - 2²⁰ = 22203378073 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22204426669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11102213324 + 11102213325.

It is an arithmetic number, because the mean of its divisors is an integer number (11102213325).

Almost surely, 2^22204426649 is an apocalyptic number.

It is an amenable number.

22204426649 is a deficient number, since it is larger than the sum of its proper divisors (1).

22204426649 is an equidigital number, since it uses as much as digits as its factorization.

22204426649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 41.

The spelling of 22204426649 in words is "twenty-two billion, two hundred four million, four hundred twenty-six thousand, six hundred forty-nine".