122717907747 has 12 divisors (see below), whose sum is σ = 179394854184. Its totient is φ = 80826252000.

The previous prime is 122717907743. The next prime is 122717907751. The reversal of 122717907747 is 747709717221.

It is an interprime number because it is at equal distance from previous prime (122717907743) and next prime (122717907751).

It is not a de Polignac number, because 122717907747 - 2² = 122717907743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122717907693 and 122717907702.

It is not an unprimeable number, because it can be changed into a prime (122717907743) 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, 82139754 + ... + 82141247.

It is an arithmetic number, because the mean of its divisors is an integer number (14949571182).

Almost surely, 2^122717907747 is an apocalyptic number.

122717907747 is a deficient number, since it is larger than the sum of its proper divisors (56676946437).

122717907747 is a wasteful number, since it uses less digits than its factorization.

122717907747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164281090 (or 164281087 counting only the distinct ones).

The product of its (nonzero) digits is 2420208, while the sum is 54.

The spelling of 122717907747 in words is "one hundred twenty-two billion, seven hundred seventeen million, nine hundred seven thousand, seven hundred forty-seven".