12012560 has 80 divisors (see below), whose sum is σ = 33628800. Its totient is φ = 3898368.

The previous prime is 12012551. The next prime is 12012599. The reversal of 12012560 is 6521021.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×12012560³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10076 + ... + 11204.

It is an arithmetic number, because the mean of its divisors is an integer number (420360).

Almost surely, 2^12012560 is an apocalyptic number.

12012560 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 12012560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16814400).

12012560 is an abundant number, since it is smaller than the sum of its proper divisors (21616240).

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

12012560 is a wasteful number, since it uses less digits than its factorization.

12012560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168 (or 1162 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 12012560 is about 3465.9140208609. The cubic root of 12012560 is about 229.0226962752.

Adding to 12012560 its reverse (6521021), we get a palindrome (18533581).

The spelling of 12012560 in words is "twelve million, twelve thousand, five hundred sixty".