12040501505412 has 96 divisors (see below), whose sum is σ = 31325098291200. Its totient is φ = 3577190902272.

The previous prime is 12040501505401. The next prime is 12040501505437. The reversal of 12040501505412 is 21450510504021.

12040501505412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12040501505412.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9245889 + ... + 10467447.

It is an arithmetic number, because the mean of its divisors is an integer number (326303107200).

Almost surely, 2^{12040501505412} is an apocalyptic number.

12040501505412 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 12040501505412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15662549145600).

12040501505412 is an abundant number, since it is smaller than the sum of its proper divisors (19284596785788).

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

12040501505412 is a wasteful number, since it uses less digits than its factorization.

12040501505412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224145 (or 1224143 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The spelling of 12040501505412 in words is "twelve trillion, forty billion, five hundred one million, five hundred five thousand, four hundred twelve".