12212010000991 has 2 divisors, whose sum is σ = 12212010000992. Its totient is φ = 12212010000990.

The previous prime is 12212010000929. The next prime is 12212010001003. The reversal of 12212010000991 is 19900001021221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12212010000991 - 2³³ = 12203420066399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12212010004991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106005000495 + 6106005000496.

It is an arithmetic number, because the mean of its divisors is an integer number (6106005000496).

Almost surely, 2^{12212010000991} is an apocalyptic number.

12212010000991 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212010000991 is an equidigital number, since it uses as much as digits as its factorization.

12212010000991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 12212010000991 in words is "twelve trillion, two hundred twelve billion, ten million, nine hundred ninety-one", and thus it is an aban number.