12422009 has 2 divisors, whose sum is σ = 12422010. Its totient is φ = 12422008.

The previous prime is 12421987. The next prime is 12422023. The reversal of 12422009 is 90022421.

12422009 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8410000 + 4012009 = 2900^2 + 2003^2 .

It is a cyclic number.

It is not a de Polignac number, because 12422009 - 2¹² = 12417913 is a prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (12422209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6211004 + 6211005.

It is an arithmetic number, because the mean of its divisors is an integer number (6211005).

Almost surely, 2^12422009 is an apocalyptic number.

It is an amenable number.

12422009 is a deficient number, since it is larger than the sum of its proper divisors (1).

12422009 is an equidigital number, since it uses as much as digits as its factorization.

12422009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 12422009 is about 3524.4870548776. The cubic root of 12422009 is about 231.5957648101.

The spelling of 12422009 in words is "twelve million, four hundred twenty-two thousand, nine".