12016812 has 12 divisors (see below), whose sum is σ = 28039256. Its totient is φ = 4005600.

The previous prime is 12016811. The next prime is 12016831. The reversal of 12016812 is 21861021.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (12016811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500689 + ... + 500712.

Almost surely, 2^12016812 is an apocalyptic number.

12016812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12016812 is an abundant number, since it is smaller than the sum of its proper divisors (16022444).

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

12016812 is a wasteful number, since it uses less digits than its factorization.

12016812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001408 (or 1001406 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 12016812 is about 3466.5273689962. The cubic root of 12016812 is about 229.0497149298.

Adding to 12016812 its reverse (21861021), we get a palindrome (33877833).

The spelling of 12016812 in words is "twelve million, sixteen thousand, eight hundred twelve".