12227526691 has 2 divisors, whose sum is σ = 12227526692. Its totient is φ = 12227526690.

The previous prime is 12227526671. The next prime is 12227526739. The reversal of 12227526691 is 19662572221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12227526691 - 2¹⁷ = 12227395619 is a prime.

It is not a weakly prime, because it can be changed into another prime (12227526671) 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, 6113763345 + 6113763346.

It is an arithmetic number, because the mean of its divisors is an integer number (6113763346).

Almost surely, 2^12227526691 is an apocalyptic number.

12227526691 is a deficient number, since it is larger than the sum of its proper divisors (1).

12227526691 is an equidigital number, since it uses as much as digits as its factorization.

12227526691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 43.

The spelling of 12227526691 in words is "twelve billion, two hundred twenty-seven million, five hundred twenty-six thousand, six hundred ninety-one".