9909517122 has 12 divisors (see below), whose sum is σ = 21470620470. Its totient is φ = 3303172368.

The previous prime is 9909517117. The next prime is 9909517157. The reversal of 9909517122 is 2217159099.

9909517122 is a `hidden beast` number, since 9 + 9 + 0 + 9 + 517 + 122 = 666.

9909517122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 5680486161 + 4229030961 = 75369^2 + 65031^2 .

It is a super-2 number, since 2×9909517122² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 275264347 + ... + 275264382.

Almost surely, 2^9909517122 is an apocalyptic number.

9909517122 is an abundant number, since it is smaller than the sum of its proper divisors (11561103348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9909517122 is a wasteful number, since it uses less digits than its factorization.

9909517122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550528737 (or 550528734 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 45.

The square root of 9909517122 is about 99546.5575597670. The cubic root of 9909517122 is about 2147.9170106717.

The spelling of 9909517122 in words is "nine billion, nine hundred nine million, five hundred seventeen thousand, one hundred twenty-two".