12422209 has 2 divisors, whose sum is σ = 12422210. Its totient is φ = 12422208.

The previous prime is 12422153. The next prime is 12422243. The reversal of 12422209 is 90222421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10419984 + 2002225 = 3228^2 + 1415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12422209 is a prime.

It is a super-2 number, since 2×12422209² = 308622552879362, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12422209.

It is not a weakly prime, because it can be changed into another prime (12422009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6211104 + 6211105.

It is an arithmetic number, because the mean of its divisors is an integer number (6211105).

Almost surely, 2^12422209 is an apocalyptic number.

It is an amenable number.

12422209 is a deficient number, since it is larger than the sum of its proper divisors (1).

12422209 is an equidigital number, since it uses as much as digits as its factorization.

12422209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12422209 is about 3524.5154276865. The cubic root of 12422209 is about 231.5970077358.

The spelling of 12422209 in words is "twelve million, four hundred twenty-two thousand, two hundred nine".