9889921112 has 16 divisors (see below), whose sum is σ = 18561603600. Its totient is φ = 4940160160.

The previous prime is 9889921099. The next prime is 9889921141. The reversal of 9889921112 is 2111299889.

It is a congruent number.

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, 591287 + ... + 607782.

It is an arithmetic number, because the mean of its divisors is an integer number (1160100225).

Almost surely, 2^9889921112 is an apocalyptic number.

It is an amenable number.

9889921112 is a deficient number, since it is larger than the sum of its proper divisors (8671682488).

9889921112 is a wasteful number, since it uses less digits than its factorization.

9889921112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200106 (or 1200102 counting only the distinct ones).

The product of its digits is 186624, while the sum is 50.

The square root of 9889921112 is about 99448.0824953403. The cubic root of 9889921112 is about 2146.5002454261.

The spelling of 9889921112 in words is "nine billion, eight hundred eighty-nine million, nine hundred twenty-one thousand, one hundred twelve".