122001212191 has 2 divisors, whose sum is σ = 122001212192. Its totient is φ = 122001212190.

The previous prime is 122001212159. The next prime is 122001212219. The reversal of 122001212191 is 191212100221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122001212191 - 2⁵ = 122001212159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122001212141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61000606095 + 61000606096.

It is an arithmetic number, because the mean of its divisors is an integer number (61000606096).

Almost surely, 2^122001212191 is an apocalyptic number.

122001212191 is a deficient number, since it is larger than the sum of its proper divisors (1).

122001212191 is an equidigital number, since it uses as much as digits as its factorization.

122001212191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 122001212191 in words is "one hundred twenty-two billion, one million, two hundred twelve thousand, one hundred ninety-one".