12212023211291 has 2 divisors, whose sum is σ = 12212023211292. Its totient is φ = 12212023211290.

The previous prime is 12212023211257. The next prime is 12212023211359. The reversal of 12212023211291 is 19211232021221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12212023211291 - 2²² = 12212019016987 is a prime.

It is a super-2 number, since 2×12212023211291² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12212023210291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106011605645 + 6106011605646.

It is an arithmetic number, because the mean of its divisors is an integer number (6106011605646).

Almost surely, 2^{12212023211291} is an apocalyptic number.

12212023211291 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212023211291 is an equidigital number, since it uses as much as digits as its factorization.

12212023211291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 12212023211291 in words is "twelve trillion, two hundred twelve billion, twenty-three million, two hundred eleven thousand, two hundred ninety-one".