22005328109 has 2 divisors, whose sum is σ = 22005328110. Its totient is φ = 22005328108.

The previous prime is 22005328073. The next prime is 22005328127. The reversal of 22005328109 is 90182350022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21927094084 + 78234025 = 148078^2 + 8845^2 .

It is a cyclic number.

It is not a de Polignac number, because 22005328109 - 2⁸ = 22005327853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22005328159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11002664054 + 11002664055.

It is an arithmetic number, because the mean of its divisors is an integer number (11002664055).

Almost surely, 2^22005328109 is an apocalyptic number.

It is an amenable number.

22005328109 is a deficient number, since it is larger than the sum of its proper divisors (1).

22005328109 is an equidigital number, since it uses as much as digits as its factorization.

22005328109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 22005328109 in words is "twenty-two billion, five million, three hundred twenty-eight thousand, one hundred nine".