122615377117 has 4 divisors (see below), whose sum is σ = 125224214976. Its totient is φ = 120006539260.

The previous prime is 122615377111. The next prime is 122615377123. The reversal of 122615377117 is 711773516221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 711773516221 = 5189 ⋅137169689.

It is an interprime number because it is at equal distance from previous prime (122615377111) and next prime (122615377123).

It is a cyclic number.

It is not a de Polignac number, because 122615377117 - 2³ = 122615377109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122615377111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1304418859 + ... + 1304418952.

It is an arithmetic number, because the mean of its divisors is an integer number (31306053744).

Almost surely, 2^122615377117 is an apocalyptic number.

It is an amenable number.

122615377117 is a deficient number, since it is larger than the sum of its proper divisors (2608837859).

122615377117 is an equidigital number, since it uses as much as digits as its factorization.

122615377117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2608837858.

The product of its digits is 123480, while the sum is 43.

The spelling of 122615377117 in words is "one hundred twenty-two billion, six hundred fifteen million, three hundred seventy-seven thousand, one hundred seventeen".