12012100211291 has 2 divisors, whose sum is σ = 12012100211292. Its totient is φ = 12012100211290.

The previous prime is 12012100211281. The next prime is 12012100211333. The reversal of 12012100211291 is 19211200121021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12012100211291 - 2³⁸ = 11737222304347 is a prime.

It is not a weakly prime, because it can be changed into another prime (12012100211281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006050105645 + 6006050105646.

It is an arithmetic number, because the mean of its divisors is an integer number (6006050105646).

Almost surely, 2^{12012100211291} is an apocalyptic number.

12012100211291 is a deficient number, since it is larger than the sum of its proper divisors (1).

12012100211291 is an equidigital number, since it uses as much as digits as its factorization.

12012100211291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 12012100211291 in words is "twelve trillion, twelve billion, one hundred million, two hundred eleven thousand, two hundred ninety-one".