12091120 has 40 divisors (see below), whose sum is σ = 28257120. Its totient is φ = 4811520.

The previous prime is 12091111. The next prime is 12091133. The reversal of 12091120 is 2119021.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 12091094 and 12091103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28510 + ... + 28930.

It is an arithmetic number, because the mean of its divisors is an integer number (706428).

Almost surely, 2^12091120 is an apocalyptic number.

12091120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12091120 is an abundant number, since it is smaller than the sum of its proper divisors (16166000).

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

12091120 is a wasteful number, since it uses less digits than its factorization.

12091120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793 (or 787 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 12091120 is about 3477.2287816593. The cubic root of 12091120 is about 229.5208677269.

The spelling of 12091120 in words is "twelve million, ninety-one thousand, one hundred twenty".