12001320012 has 96 divisors (see below), whose sum is σ = 31196761344. Its totient is φ = 3560371200.

The previous prime is 12001319987. The next prime is 12001320047. The reversal of 12001320012 is 21002310021.

12001320012 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 (12).

It is a self number, because there is not a number n which added to its sum of digits gives 12001320012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1315587 + ... + 1324677.

It is an arithmetic number, because the mean of its divisors is an integer number (324966264).

Almost surely, 2^12001320012 is an apocalyptic number.

12001320012 is a gapful number since it is divisible by the number (12) 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 12001320012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15598380672).

12001320012 is an abundant number, since it is smaller than the sum of its proper divisors (19195441332).

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

12001320012 is a wasteful number, since it uses less digits than its factorization.

12001320012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9319 (or 9317 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

12001320012 divided by its sum of digits (12) gives a palindrome (1000110001).

Adding to 12001320012 its reverse (21002310021), we get a palindrome (33003630033).

Subtracting 12001320012 from its reverse (21002310021), we obtain a palindrome (9000990009).

The spelling of 12001320012 in words is "twelve billion, one million, three hundred twenty thousand, twelve".