12212321101091 has 2 divisors, whose sum is σ = 12212321101092. Its totient is φ = 12212321101090.

The previous prime is 12212321101087. The next prime is 12212321101129. The reversal of 12212321101091 is 19010112321221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12212321101091 - 2² = 12212321101087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12212321101091.

It is not a weakly prime, because it can be changed into another prime (12212321101391) 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, 6106160550545 + 6106160550546.

It is an arithmetic number, because the mean of its divisors is an integer number (6106160550546).

Almost surely, 2^{12212321101091} is an apocalyptic number.

12212321101091 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212321101091 is an equidigital number, since it uses as much as digits as its factorization.

12212321101091 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 26.

The spelling of 12212321101091 in words is "twelve trillion, two hundred twelve billion, three hundred twenty-one million, one hundred one thousand, ninety-one".