9121119985 has 16 divisors (see below), whose sum is σ = 11088979200. Its totient is φ = 7201224576.

The previous prime is 9121119979. The next prime is 9121120003. The reversal of 9121119985 is 5899111219.

It is a cyclic number.

It is not a de Polignac number, because 9121119985 - 2⁷ = 9121119857 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1207701 + ... + 1215229.

It is an arithmetic number, because the mean of its divisors is an integer number (693061200).

Almost surely, 2^9121119985 is an apocalyptic number.

It is an amenable number.

9121119985 is a deficient number, since it is larger than the sum of its proper divisors (1967859215).

9121119985 is a wasteful number, since it uses less digits than its factorization.

9121119985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10680.

The product of its digits is 58320, while the sum is 46.

The square root of 9121119985 is about 95504.5547866697. The cubic root of 9121119985 is about 2089.3733754018.

The spelling of 9121119985 in words is "nine billion, one hundred twenty-one million, one hundred nineteen thousand, nine hundred eighty-five".