109921120 has 24 divisors (see below), whose sum is σ = 259689024. Its totient is φ = 43968384.

The previous prime is 109921103. The next prime is 109921121. The reversal of 109921120 is 21129901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109921121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343344 + ... + 343663.

It is an arithmetic number, because the mean of its divisors is an integer number (10820376).

Almost surely, 2^109921120 is an apocalyptic number.

109921120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109921120 is an abundant number, since it is smaller than the sum of its proper divisors (149767904).

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

109921120 is an equidigital number, since it uses as much as digits as its factorization.

109921120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687022 (or 687014 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 109921120 is about 10484.3273508604. The cubic root of 109921120 is about 479.0274288653.

The spelling of 109921120 in words is "one hundred nine million, nine hundred twenty-one thousand, one hundred twenty".