12001512334544 has 20 divisors (see below), whose sum is σ = 23278567365024. Its totient is φ = 5994140111328.

The previous prime is 12001512334543. The next prime is 12001512334571. The reversal of 12001512334544 is 44543321510021.

It is a super-3 number, since 3×12001512334544³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001512334543) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 413488532 + ... + 413517555.

Almost surely, 2^{12001512334544} is an apocalyptic number.

It is an amenable number.

12001512334544 is a deficient number, since it is larger than the sum of its proper divisors (11277055030480).

12001512334544 is an equidigital number, since it uses as much as digits as its factorization.

12001512334544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827007002 (or 827006996 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 12001512334544 its reverse (44543321510021), we get a palindrome (56544833844565).

The spelling of 12001512334544 in words is "twelve trillion, one billion, five hundred twelve million, three hundred thirty-four thousand, five hundred forty-four".