122741205161 has 2 divisors, whose sum is σ = 122741205162. Its totient is φ = 122741205160.

The previous prime is 122741205143. The next prime is 122741205187. The reversal of 122741205161 is 161502147221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122373332761 + 367872400 = 349819^2 + 19180^2 .

It is a cyclic number.

It is not a de Polignac number, because 122741205161 - 2³⁴ = 105561335977 is a prime.

It is not a weakly prime, because it can be changed into another prime (122741205061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61370602580 + 61370602581.

It is an arithmetic number, because the mean of its divisors is an integer number (61370602581).

Almost surely, 2^122741205161 is an apocalyptic number.

It is an amenable number.

122741205161 is a deficient number, since it is larger than the sum of its proper divisors (1).

122741205161 is an equidigital number, since it uses as much as digits as its factorization.

122741205161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 32.

The spelling of 122741205161 in words is "one hundred twenty-two billion, seven hundred forty-one million, two hundred five thousand, one hundred sixty-one".