12000012 has 24 divisors (see below), whose sum is σ = 28280112. Its totient is φ = 3960000.

The previous prime is 11999989. The next prime is 12000017. The reversal of 12000012 is 21000021.

It is a happy number.

12000012 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 (6).

It is not an unprimeable number, because it can be changed into a prime (12000017) 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, 3739 + ... + 6162.

It is an arithmetic number, because the mean of its divisors is an integer number (1178338).

Almost surely, 2^12000012 is an apocalyptic number.

12000012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12000012 is an abundant number, since it is smaller than the sum of its proper divisors (16280100).

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

12000012 is a wasteful number, since it uses less digits than its factorization.

12000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10009 (or 10007 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 12000012 is about 3464.1033471881. The cubic root of 12000012 is about 228.9429248249.

Adding to 12000012 its reverse (21000021), we get a palindrome (33000033).

Subtracting 12000012 from its reverse (21000021), we obtain a palindrome (9000009).

It can be divided in two parts, 120000 and 12, that multiplied together give a square (1440000 = 1200²).

The spelling of 12000012 in words is "twelve million, twelve", and thus it is an aban number and an uban number.