444104221321 has 4 divisors (see below), whose sum is σ = 454432226512. Its totient is φ = 433776216132.

The previous prime is 444104221303. The next prime is 444104221397. The reversal of 444104221321 is 123122401444.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 444104221321 - 2¹⁷ = 444104090249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 444104221321.

It is not an unprimeable number, because it can be changed into a prime (444104222321) 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, 5164002531 + ... + 5164002616.

It is an arithmetic number, because the mean of its divisors is an integer number (113608056628).

Almost surely, 2^444104221321 is an apocalyptic number.

It is an amenable number.

444104221321 is a deficient number, since it is larger than the sum of its proper divisors (10328005191).

444104221321 is a wasteful number, since it uses less digits than its factorization.

444104221321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10328005190.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 444104221321 its reverse (123122401444), we get a palindrome (567226622765).

The spelling of 444104221321 in words is "four hundred forty-four billion, one hundred four million, two hundred twenty-one thousand, three hundred twenty-one".