12223009 has 2 divisors, whose sum is σ = 12223010. Its totient is φ = 12223008.

The previous prime is 12222989. The next prime is 12223031. The reversal of 12223009 is 90032221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6390784 + 5832225 = 2528^2 + 2415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12223009 is a prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (12223049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111504 + 6111505.

It is an arithmetic number, because the mean of its divisors is an integer number (6111505).

Almost surely, 2^12223009 is an apocalyptic number.

It is an amenable number.

12223009 is a deficient number, since it is larger than the sum of its proper divisors (1).

12223009 is an equidigital number, since it uses as much as digits as its factorization.

12223009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 12223009 is about 3496.1420165663. The cubic root of 12223009 is about 230.3523835920.

The spelling of 12223009 in words is "twelve million, two hundred twenty-three thousand, nine".