9011717121 has 24 divisors (see below), whose sum is σ = 13221966240. Its totient is φ = 5455563520.

The previous prime is 9011717089. The next prime is 9011717149. The reversal of 9011717121 is 1217171109.

It is a happy number.

It is not a de Polignac number, because 9011717121 - 2⁵ = 9011717089 is a prime.

It is a super-2 number, since 2×9011717121² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9011717321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 323866 + ... + 350588.

It is an arithmetic number, because the mean of its divisors is an integer number (550915260).

Almost surely, 2^9011717121 is an apocalyptic number.

It is an amenable number.

9011717121 is a deficient number, since it is larger than the sum of its proper divisors (4210249119).

9011717121 is a wasteful number, since it uses less digits than its factorization.

9011717121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27677 (or 27666 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 30.

The square root of 9011717121 is about 94930.0643684602. The cubic root of 9011717121 is about 2080.9861202584.

The spelling of 9011717121 in words is "nine billion, eleven million, seven hundred seventeen thousand, one hundred twenty-one".