444521000221401 has 16 divisors (see below), whose sum is σ = 593313518024640. Its totient is φ = 296037944431680.

The previous prime is 444521000221367. The next prime is 444521000221433. The reversal of 444521000221401 is 104122000125444.

It is not a de Polignac number, because 444521000221401 - 2¹⁰ = 444521000220377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (444521000221471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44277691 + ... + 53381231.

It is an arithmetic number, because the mean of its divisors is an integer number (37082094876540).

Almost surely, 2^{444521000221401} is an apocalyptic number.

It is an amenable number.

444521000221401 is a deficient number, since it is larger than the sum of its proper divisors (148792517803239).

444521000221401 is a wasteful number, since it uses less digits than its factorization.

444521000221401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9120536.

The product of its (nonzero) digits is 10240, while the sum is 30.

Adding to 444521000221401 its reverse (104122000125444), we get a palindrome (548643000346845).

The spelling of 444521000221401 in words is "four hundred forty-four trillion, five hundred twenty-one billion, two hundred twenty-one thousand, four hundred one".