12226649 has 2 divisors, whose sum is σ = 12226650. Its totient is φ = 12226648.

The previous prime is 12226637. The next prime is 12226667. The reversal of 12226649 is 94662221.

12226649 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12201049 + 25600 = 3493^2 + 160^2 .

It is a cyclic number.

It is not a de Polignac number, because 12226649 - 2¹⁶ = 12161113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12226609) 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, 6113324 + 6113325.

It is an arithmetic number, because the mean of its divisors is an integer number (6113325).

Almost surely, 2^12226649 is an apocalyptic number.

It is an amenable number.

12226649 is a deficient number, since it is larger than the sum of its proper divisors (1).

12226649 is an equidigital number, since it uses as much as digits as its factorization.

12226649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 12226649 is about 3496.6625516341. The cubic root of 12226649 is about 230.3752475599.

The spelling of 12226649 in words is "twelve million, two hundred twenty-six thousand, six hundred forty-nine".