12044400444021 has 16 divisors (see below), whose sum is σ = 17519539765248. Its totient is φ = 7299465030000.

The previous prime is 12044400443987. The next prime is 12044400444031.

12044400444021 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12044400444021 - 2¹¹ = 12044400441973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12044400444021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12044400444031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2857911 + ... + 5679476.

It is an arithmetic number, because the mean of its divisors is an integer number (1094971235328).

Almost surely, 2^{12044400444021} is an apocalyptic number.

12044400444021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12044400444021 is a deficient number, since it is larger than the sum of its proper divisors (5475139321227).

12044400444021 is a wasteful number, since it uses less digits than its factorization.

12044400444021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8580152.

The product of its (nonzero) digits is 16384, while the sum is 30.

It can be divided in two parts, 12044400 and 444021, that added together give a palindrome (12488421).

The spelling of 12044400444021 in words is "twelve trillion, forty-four billion, four hundred million, four hundred forty-four thousand, twenty-one".