122201012191 has 2 divisors, whose sum is σ = 122201012192. Its totient is φ = 122201012190.

The previous prime is 122201012177. The next prime is 122201012221. The reversal of 122201012191 is 191210102221.

It is a weak prime.

It is an emirp because it is prime and its reverse (191210102221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122201012191 - 2⁵ = 122201012159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122201012291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61100506095 + 61100506096.

It is an arithmetic number, because the mean of its divisors is an integer number (61100506096).

Almost surely, 2^122201012191 is an apocalyptic number.

122201012191 is a deficient number, since it is larger than the sum of its proper divisors (1).

122201012191 is an equidigital number, since it uses as much as digits as its factorization.

122201012191 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 122201012191 in words is "one hundred twenty-two billion, two hundred one million, twelve thousand, one hundred ninety-one".