12206291 has 2 divisors, whose sum is σ = 12206292. Its totient is φ = 12206290.

The previous prime is 12206273. The next prime is 12206309. The reversal of 12206291 is 19260221.

It is a balanced prime because it is at equal distance from previous prime (12206273) and next prime (12206309).

It is a cyclic number.

It is not a de Polignac number, because 12206291 - 2¹⁴ = 12189907 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12206191) 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, 6103145 + 6103146.

It is an arithmetic number, because the mean of its divisors is an integer number (6103146).

Almost surely, 2^12206291 is an apocalyptic number.

12206291 is a deficient number, since it is larger than the sum of its proper divisors (1).

12206291 is an equidigital number, since it uses as much as digits as its factorization.

12206291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 12206291 is about 3493.7502772808. The cubic root of 12206291 is about 230.2473143129.

The spelling of 12206291 in words is "twelve million, two hundred six thousand, two hundred ninety-one".