12226507 has 2 divisors, whose sum is σ = 12226508. Its totient is φ = 12226506.

The previous prime is 12226499. The next prime is 12226537. The reversal of 12226507 is 70562221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12226507 - 2³ = 12226499 is a prime.

It is not a weakly prime, because it can be changed into another prime (12226537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6113253 + 6113254.

It is an arithmetic number, because the mean of its divisors is an integer number (6113254).

Almost surely, 2^12226507 is an apocalyptic number.

12226507 is a deficient number, since it is larger than the sum of its proper divisors (1).

12226507 is an equidigital number, since it uses as much as digits as its factorization.

12226507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 12226507 is about 3496.6422464988. The cubic root of 12226507 is about 230.3743556990.

Adding to 12226507 its reverse (70562221), we get a palindrome (82788728).

The spelling of 12226507 in words is "twelve million, two hundred twenty-six thousand, five hundred seven".