12012231123120 has 80 divisors (see below), whose sum is σ = 37869067653120. Its totient is φ = 3148969059072.

The previous prime is 12012231123071. The next prime is 12012231123133. The reversal of 12012231123120 is 2132113221021.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424146544 + ... + 424174863.

It is an arithmetic number, because the mean of its divisors is an integer number (473363345664).

Almost surely, 2^{12012231123120} is an apocalyptic number.

12012231123120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012231123120 is an abundant number, since it is smaller than the sum of its proper divisors (25856836530000).

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

12012231123120 is a wasteful number, since it uses less digits than its factorization.

12012231123120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848321482 (or 848321476 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 12012231123120 its reverse (2132113221021), we get a palindrome (14144344344141).

The spelling of 12012231123120 in words is "twelve trillion, twelve billion, two hundred thirty-one million, one hundred twenty-three thousand, one hundred twenty".