12012040000000 has 160 divisors (see below), whose sum is σ = 30000796830576. Its totient is φ = 4804800000000.

The previous prime is 12012039999991. The next prime is 12012040000057. The reversal of 12012040000000 is 4021021.

It can be written as a sum of positive squares in 8 ways, for example, as 11723009036544 + 289030963456 = 3423888^2 + 537616^2 .

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39849850 + ... + 40150150.

Almost surely, 2^{12012040000000} is an apocalyptic number.

12012040000000 is a gapful number since it is divisible by the number (10) 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 12012040000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15000398415288).

12012040000000 is an abundant number, since it is smaller than the sum of its proper divisors (17988756830576).

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

12012040000000 is an frugal number, since it uses more digits than its factorization.

12012040000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300354 (or 300308 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 12012040000000 its reverse (4021021), we get a palindrome (12012044021021).

The spelling of 12012040000000 in words is "twelve trillion, twelve billion, forty million", and thus it is an aban number and an uban number.