122001121100191 has 2 divisors, whose sum is σ = 122001121100192. Its totient is φ = 122001121100190.

The previous prime is 122001121100143. The next prime is 122001121100231. The reversal of 122001121100191 is 191001121100221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122001121100191 - 2⁹ = 122001121099679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122001121100291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61000560550095 + 61000560550096.

It is an arithmetic number, because the mean of its divisors is an integer number (61000560550096).

Almost surely, 2^{122001121100191} is an apocalyptic number.

122001121100191 is a deficient number, since it is larger than the sum of its proper divisors (1).

122001121100191 is an equidigital number, since it uses as much as digits as its factorization.

122001121100191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 122001121100191 in words is "one hundred twenty-two trillion, one billion, one hundred twenty-one million, one hundred thousand, one hundred ninety-one".