122369811877 has 2 divisors, whose sum is σ = 122369811878. Its totient is φ = 122369811876.

The previous prime is 122369811853. The next prime is 122369811887. The reversal of 122369811877 is 778118963221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118446793921 + 3923017956 = 344161^2 + 62634^2 .

It is an emirp because it is prime and its reverse (778118963221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122369811877 - 2¹¹ = 122369809829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122369811887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61184905938 + 61184905939.

It is an arithmetic number, because the mean of its divisors is an integer number (61184905939).

Almost surely, 2^122369811877 is an apocalyptic number.

It is an amenable number.

122369811877 is a deficient number, since it is larger than the sum of its proper divisors (1).

122369811877 is an equidigital number, since it uses as much as digits as its factorization.

122369811877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128, while the sum is 55.

The spelling of 122369811877 in words is "one hundred twenty-two billion, three hundred sixty-nine million, eight hundred eleven thousand, eight hundred seventy-seven".