44421421412221 has 8 divisors (see below), whose sum is σ = 51025040985600. Its totient is φ = 37882227396048.

The previous prime is 44421421412189. The next prime is 44421421412233. The reversal of 44421421412221 is 12221412412444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 44421421412221 - 2⁵ = 44421421412189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44421421412281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16106387821 + ... + 16106390578.

It is an arithmetic number, because the mean of its divisors is an integer number (6378130123200).

Almost surely, 2^{44421421412221} is an apocalyptic number.

It is an amenable number.

44421421412221 is a deficient number, since it is larger than the sum of its proper divisors (6603619573379).

44421421412221 is a wasteful number, since it uses less digits than its factorization.

44421421412221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32212778603.

The product of its digits is 32768, while the sum is 34.

Adding to 44421421412221 its reverse (12221412412444), we get a palindrome (56642833824665).

The spelling of 44421421412221 in words is "forty-four trillion, four hundred twenty-one billion, four hundred twenty-one million, four hundred twelve thousand, two hundred twenty-one".