12207911 has 2 divisors, whose sum is σ = 12207912. Its totient is φ = 12207910.

The previous prime is 12207859. The next prime is 12207919. The reversal of 12207911 is 11970221.

It is a strong prime.

It is an emirp because it is prime and its reverse (11970221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12207911 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12207919) 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, 6103955 + 6103956.

It is an arithmetic number, because the mean of its divisors is an integer number (6103956).

Almost surely, 2^12207911 is an apocalyptic number.

12207911 is a deficient number, since it is larger than the sum of its proper divisors (1).

12207911 is an equidigital number, since it uses as much as digits as its factorization.

12207911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 12207911 is about 3493.9821121465. The cubic root of 12207911 is about 230.2574998844.

The spelling of 12207911 in words is "twelve million, two hundred seven thousand, nine hundred eleven".