44221 has 2 divisors, whose sum is σ = 44222. Its totient is φ = 44220.

The previous prime is 44207. The next prime is 44249. The reversal of 44221 is 12244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44100 + 121 = 210^2 + 11^2 .

It is a cyclic number.

It is not a de Polignac number, because 44221 - 2⁵ = 44189 is a prime.

It is a Chen prime.

It is equal to p₄₆₀₃ and since 44221 and 4603 have the same sum of digits, it is a Honaker prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22110 + 22111.

It is an arithmetic number, because the mean of its divisors is an integer number (22111).

2⁴⁴²²¹ is an apocalyptic number.

It is an amenable number.

44221 is a deficient number, since it is larger than the sum of its proper divisors (1).

44221 is an equidigital number, since it uses as much as digits as its factorization.

44221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64, while the sum is 13.

The square root of 44221 is about 210.2878978924. The cubic root of 44221 is about 35.3624912593.

Adding to 44221 its reverse (12244), we get a palindrome (56465).

It can be divided in two parts, 4 and 4221, that added together give a square (4225 = 65²).

The spelling of 44221 in words is "forty-four thousand, two hundred twenty-one", and thus it is an iban number.