12012521023444 has 24 divisors (see below), whose sum is σ = 22258619183808. Its totient is φ = 5652919489920.

The previous prime is 12012521023421. The next prime is 12012521023499. The reversal of 12012521023444 is 44432012521021.

12012521023444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12012521023444² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15599337 + ... + 16351279.

It is an arithmetic number, because the mean of its divisors is an integer number (927442465992).

Almost surely, 2^{12012521023444} is an apocalyptic number.

It is an amenable number.

12012521023444 is a deficient number, since it is larger than the sum of its proper divisors (10246098160364).

12012521023444 is a wasteful number, since it uses less digits than its factorization.

12012521023444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986895 (or 986893 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 12012521023444 its reverse (44432012521021), we get a palindrome (56444533544465).

The spelling of 12012521023444 in words is "twelve trillion, twelve billion, five hundred twenty-one million, twenty-three thousand, four hundred forty-four".