12015020 has 12 divisors (see below), whose sum is σ = 25231584. Its totient is φ = 4806000.

The previous prime is 12015013. The next prime is 12015041. The reversal of 12015020 is 2051021.

It is a junction number, because it is equal to n+sod(n) for n = 12014992 and 12015010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300356 + ... + 300395.

It is an arithmetic number, because the mean of its divisors is an integer number (2102632).

Almost surely, 2^12015020 is an apocalyptic number.

12015020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12015020 is an abundant number, since it is smaller than the sum of its proper divisors (13216564).

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

12015020 is a wasteful number, since it uses less digits than its factorization.

12015020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600760 (or 600758 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 12015020 is about 3466.2688874350. The cubic root of 12015020 is about 229.0383287293.

Adding to 12015020 its reverse (2051021), we get a palindrome (14066041).

The spelling of 12015020 in words is "twelve million, fifteen thousand, twenty".