12116720 has 120 divisors (see below), whose sum is σ = 35877168. Its totient is φ = 3763200.

The previous prime is 12116719. The next prime is 12116729. The reversal of 12116720 is 2761121.

12116720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12116692 and 12116701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12116729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42980 + ... + 43260.

Almost surely, 2^12116720 is an apocalyptic number.

12116720 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 12116720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17938584).

12116720 is an abundant number, since it is smaller than the sum of its proper divisors (23760448).

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

12116720 is a wasteful number, since it uses less digits than its factorization.

12116720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 12116720 is about 3480.9079275384. The cubic root of 12116720 is about 229.6827383745.

Adding to 12116720 its reverse (2761121), we get a palindrome (14877841).

The spelling of 12116720 in words is "twelve million, one hundred sixteen thousand, seven hundred twenty".