12120012012 has 96 divisors (see below), whose sum is σ = 30255224832. Its totient is φ = 3767360256.

The previous prime is 12120011993. The next prime is 12120012043. The reversal of 12120012012 is 21021002121.

12120012012 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 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, 3591558 + ... + 3594930.

It is an arithmetic number, because the mean of its divisors is an integer number (315158592).

Almost surely, 2^12120012012 is an apocalyptic number.

12120012012 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 12120012012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15127612416).

12120012012 is an abundant number, since it is smaller than the sum of its proper divisors (18135212820).

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

12120012012 is a wasteful number, since it uses less digits than its factorization.

12120012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3727 (or 3725 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12120012012 its reverse (21021002121), we get a palindrome (33141014133).

The spelling of 12120012012 in words is "twelve billion, one hundred twenty million, twelve thousand, twelve".