9321289212 has 48 divisors (see below), whose sum is σ = 22847731200. Its totient is φ = 2952045888.

The previous prime is 9321289207. The next prime is 9321289319. The reversal of 9321289212 is 2129821239.

It is a congruent number.

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, 72208 + ... + 154455.

It is an arithmetic number, because the mean of its divisors is an integer number (475994400).

Almost surely, 2^9321289212 is an apocalyptic number.

9321289212 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

9321289212 is an abundant number, since it is smaller than the sum of its proper divisors (13526441988).

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

9321289212 is a wasteful number, since it uses less digits than its factorization.

9321289212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226842 (or 226840 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 9321289212 is about 96546.8239353320. The cubic root of 9321289212 is about 2104.5471545961.

The spelling of 9321289212 in words is "nine billion, three hundred twenty-one million, two hundred eighty-nine thousand, two hundred twelve".