12197120 has 72 divisors (see below), whose sum is σ = 31506216. Its totient is φ = 4497408.

The previous prime is 12197113. The next prime is 12197123. The reversal of 12197120 is 2179121.

It can be written as a sum of positive squares in 4 ways, for example, as 2262016 + 9935104 = 1504^2 + 3152^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12197123) 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, 16274 + ... + 17006.

Almost surely, 2^12197120 is an apocalyptic number.

12197120 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 12197120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15753108).

12197120 is an abundant number, since it is smaller than the sum of its proper divisors (19309096).

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

12197120 is an equidigital number, since it uses as much as digits as its factorization.

12197120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 12197120 is about 3492.4375441803. The cubic root of 12197120 is about 230.1896356624.

The spelling of 12197120 in words is "twelve million, one hundred ninety-seven thousand, one hundred twenty".