10444221 has 10 divisors (see below), whose sum is σ = 15601982. Its totient is φ = 6962760.

The previous prime is 10444219. The next prime is 10444229. The reversal of 10444221 is 12244401.

10444221 is a `hidden beast` number, since 1 + 0 + 444 + 221 = 666.

10444221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10208025 + 236196 = 3195^2 + 486^2 .

It is not a de Polignac number, because 10444221 - 2¹ = 10444219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10444194 and 10444203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10444229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 64390 + ... + 64551.

Almost surely, 2^10444221 is an apocalyptic number.

It is an amenable number.

10444221 is a deficient number, since it is larger than the sum of its proper divisors (5157761).

10444221 is an equidigital number, since it uses as much as digits as its factorization.

10444221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128953 (or 128944 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 10444221 is about 3231.7520016239. The cubic root of 10444221 is about 218.5875140576.

Adding to 10444221 its reverse (12244401), we get a palindrome (22688622).

The spelling of 10444221 in words is "ten million, four hundred forty-four thousand, two hundred twenty-one".