122666717 has 12 divisors (see below), whose sum is σ = 130759200. Its totient is φ = 115047432.

The previous prime is 122666701. The next prime is 122666737. The reversal of 122666717 is 717666221.

It is not a de Polignac number, because 122666717 - 2⁴ = 122666701 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 (122666737) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35534 + ... + 38832.

It is an arithmetic number, because the mean of its divisors is an integer number (10896600).

Almost surely, 2^122666717 is an apocalyptic number.

It is an amenable number.

122666717 is a deficient number, since it is larger than the sum of its proper divisors (8092483).

122666717 is a wasteful number, since it uses less digits than its factorization.

122666717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3440 (or 3421 counting only the distinct ones).

The product of its digits is 42336, while the sum is 38.

The square root of 122666717 is about 11075.5007561735. The cubic root of 122666717 is about 496.8693955409.

The spelling of 122666717 in words is "one hundred twenty-two million, six hundred sixty-six thousand, seven hundred seventeen".