12247211 has 2 divisors, whose sum is σ = 12247212. Its totient is φ = 12247210.

The previous prime is 12247199. The next prime is 12247237. The reversal of 12247211 is 11274221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12247211 - 2¹⁰ = 12246187 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12247271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6123605 + 6123606.

It is an arithmetic number, because the mean of its divisors is an integer number (6123606).

Almost surely, 2^12247211 is an apocalyptic number.

12247211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12247211 is an equidigital number, since it uses as much as digits as its factorization.

12247211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 224, while the sum is 20.

The square root of 12247211 is about 3499.6015487481. The cubic root of 12247211 is about 230.5043187080.

The spelling of 12247211 in words is "twelve million, two hundred forty-seven thousand, two hundred eleven".