122102111161 has 2 divisors, whose sum is σ = 122102111162. Its totient is φ = 122102111160.

The previous prime is 122102111039. The next prime is 122102111177. The reversal of 122102111161 is 161111201221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71457309225 + 50644801936 = 267315^2 + 225044^2 .

It is a cyclic number.

It is not a de Polignac number, because 122102111161 - 2²⁷ = 121967893433 is a prime.

It is not a weakly prime, because it can be changed into another prime (122102111191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61051055580 + 61051055581.

It is an arithmetic number, because the mean of its divisors is an integer number (61051055581).

Almost surely, 2^122102111161 is an apocalyptic number.

It is an amenable number.

122102111161 is a deficient number, since it is larger than the sum of its proper divisors (1).

122102111161 is an equidigital number, since it uses as much as digits as its factorization.

122102111161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 122102111161 its reverse (161111201221), we get a palindrome (283213312382).

The spelling of 122102111161 in words is "one hundred twenty-two billion, one hundred two million, one hundred eleven thousand, one hundred sixty-one".