12241920 has 88 divisors (see below), whose sum is σ = 39204144. Its totient is φ = 3260416.

The previous prime is 12241913. The next prime is 12241927. The reversal of 12241920 is 2914221.

It is an interprime number because it is at equal distance from previous prime (12241913) and next prime (12241927).

It is not an unprimeable number, because it can be changed into a prime (12241927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14962 + ... + 15758.

Almost surely, 2^12241920 is an apocalyptic number.

12241920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12241920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19602072).

12241920 is an abundant number, since it is smaller than the sum of its proper divisors (26962224).

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

12241920 is an equidigital number, since it uses as much as digits as its factorization.

12241920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825 (or 807 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 12241920 is about 3498.8455238836. The cubic root of 12241920 is about 230.4711200197.

The spelling of 12241920 in words is "twelve million, two hundred forty-one thousand, nine hundred twenty".