121122010212191 has 2 divisors, whose sum is σ = 121122010212192. Its totient is φ = 121122010212190.

The previous prime is 121122010212179. The next prime is 121122010212211. The reversal of 121122010212191 is 191212010221121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121122010212191 - 2¹⁸ = 121122009950047 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121122010212191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121122010212491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60561005106095 + 60561005106096.

It is an arithmetic number, because the mean of its divisors is an integer number (60561005106096).

Almost surely, 2^{121122010212191} is an apocalyptic number.

121122010212191 is a deficient number, since it is larger than the sum of its proper divisors (1).

121122010212191 is an equidigital number, since it uses as much as digits as its factorization.

121122010212191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 26.

The spelling of 121122010212191 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, ten million, two hundred twelve thousand, one hundred ninety-one".