11921120 has 24 divisors (see below), whose sum is σ = 28164024. Its totient is φ = 4768384.

The previous prime is 11921101. The next prime is 11921137. The reversal of 11921120 is 2112911.

It is a super-2 number, since 2×11921120² = 284226204108800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37094 + ... + 37413.

It is an arithmetic number, because the mean of its divisors is an integer number (1173501).

Almost surely, 2^11921120 is an apocalyptic number.

11921120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11921120 is an abundant number, since it is smaller than the sum of its proper divisors (16242904).

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

11921120 is an equidigital number, since it uses as much as digits as its factorization.

11921120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74522 (or 74514 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 11921120 is about 3452.6974961615. The cubic root of 11921120 is about 228.4401061126.

The spelling of 11921120 in words is "eleven million, nine hundred twenty-one thousand, one hundred twenty".