12015012 has 24 divisors (see below), whose sum is σ = 28123200. Its totient is φ = 3992416.

The previous prime is 12015001. The next prime is 12015013. The reversal of 12015012 is 21051021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (12015013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2914 + ... + 5702.

It is an arithmetic number, because the mean of its divisors is an integer number (1171800).

Almost surely, 2^12015012 is an apocalyptic number.

12015012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12015012 is an abundant number, since it is smaller than the sum of its proper divisors (16108188).

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

12015012 is a wasteful number, since it uses less digits than its factorization.

12015012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3155 (or 3153 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 12015012 is about 3466.2677334563. The cubic root of 12015012 is about 229.0382778955.

Adding to 12015012 its reverse (21051021), we get a palindrome (33066033).

The spelling of 12015012 in words is "twelve million, fifteen thousand, twelve".