9121120912 has 20 divisors (see below), whose sum is σ = 17682481840. Its totient is φ = 4557899808.

The previous prime is 9121120903. The next prime is 9121120937. The reversal of 9121120912 is 2190211219.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137862 + ... + 192997.

It is an arithmetic number, because the mean of its divisors is an integer number (884124092).

Almost surely, 2^9121120912 is an apocalyptic number.

It is an amenable number.

9121120912 is a deficient number, since it is larger than the sum of its proper divisors (8561360928).

9121120912 is a wasteful number, since it uses less digits than its factorization.

9121120912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332590 (or 332584 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 9121120912 is about 95504.5596398413. The cubic root of 9121120912 is about 2089.3734461844.

The spelling of 9121120912 in words is "nine billion, one hundred twenty-one million, one hundred twenty thousand, nine hundred twelve".