921101112 has 64 divisors (see below), whose sum is σ = 2613081600. Its totient is φ = 300497760.

The previous prime is 921101099. The next prime is 921101117. The reversal of 921101112 is 211101129.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (921101117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35214 + ... + 55517.

It is an arithmetic number, because the mean of its divisors is an integer number (40829400).

Almost surely, 2^921101112 is an apocalyptic number.

It is an amenable number.

921101112 is an abundant number, since it is smaller than the sum of its proper divisors (1691980488).

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

921101112 is a wasteful number, since it uses less digits than its factorization.

921101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90793 (or 90783 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The square root of 921101112 is about 30349.6476421062. The cubic root of 921101112 is about 972.9766893567.

The spelling of 921101112 in words is "nine hundred twenty-one million, one hundred one thousand, one hundred twelve".