22241312209 has 2 divisors, whose sum is σ = 22241312210. Its totient is φ = 22241312208.

The previous prime is 22241312153. The next prime is 22241312231. The reversal of 22241312209 is 90221314222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19396689984 + 2844622225 = 139272^2 + 53335^2 .

It is a cyclic number.

It is not a de Polignac number, because 22241312209 - 2⁷ = 22241312081 is a prime.

It is not a weakly prime, because it can be changed into another prime (22241312909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11120656104 + 11120656105.

It is an arithmetic number, because the mean of its divisors is an integer number (11120656105).

Almost surely, 2^22241312209 is an apocalyptic number.

It is an amenable number.

22241312209 is a deficient number, since it is larger than the sum of its proper divisors (1).

22241312209 is an equidigital number, since it uses as much as digits as its factorization.

22241312209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 22241312209 in words is "twenty-two billion, two hundred forty-one million, three hundred twelve thousand, two hundred nine".