44421510221 has 8 divisors (see below), whose sum is σ = 51310407744. Its totient is φ = 38007709120.

The previous prime is 44421510191. The next prime is 44421510223. The reversal of 44421510221 is 12201512444.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44421510221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44421510223) 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, 118773905 + ... + 118774278.

It is an arithmetic number, because the mean of its divisors is an integer number (6413800968).

Almost surely, 2^44421510221 is an apocalyptic number.

It is an amenable number.

44421510221 is a deficient number, since it is larger than the sum of its proper divisors (6888897523).

44421510221 is a wasteful number, since it uses less digits than its factorization.

44421510221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237548211.

The product of its (nonzero) digits is 2560, while the sum is 26.

The spelling of 44421510221 in words is "forty-four billion, four hundred twenty-one million, five hundred ten thousand, two hundred twenty-one".