122443155012197 has 2 divisors, whose sum is σ = 122443155012198. Its totient is φ = 122443155012196.

The previous prime is 122443155012179. The next prime is 122443155012239. The reversal of 122443155012197 is 791210551344221.

Together with previous prime (122443155012179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91638002055076 + 30805152957121 = 9572774^2 + 5550239^2 .

It is a cyclic number.

It is not a de Polignac number, because 122443155012197 - 2⁶ = 122443155012133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122443155012097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61221577506098 + 61221577506099.

It is an arithmetic number, because the mean of its divisors is an integer number (61221577506099).

Almost surely, 2^{122443155012197} is an apocalyptic number.

It is an amenable number.

122443155012197 is a deficient number, since it is larger than the sum of its proper divisors (1).

122443155012197 is an equidigital number, since it uses as much as digits as its factorization.

122443155012197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 122443155012197 in words is "one hundred twenty-two trillion, four hundred forty-three billion, one hundred fifty-five million, twelve thousand, one hundred ninety-seven".