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BaseRepresentation
bin11011110001101
3201111201
43132031
5423341
6145501
756314
oct33615
921451
1014221
11a759
128291
13661c
14527b
154331
hex378d

14221 has 2 divisors, whose sum is σ = 14222. Its totient is φ = 14220.

The previous prime is 14207. The next prime is 14243. The reversal of 14221 is 12241.

Adding to 14221 its reverse (12241), we get a palindrome (26462).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12996 + 1225 = 114^2 + 35^2 .

It is an emirp because it is prime and its reverse (12241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14221 - 29 = 13709 is a prime.

It is a plaindrome in base 16.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 14198 and 14207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7110 + 7111.

It is an arithmetic number, because the mean of its divisors is an integer number (7111).

214221 is an apocalyptic number.

It is an amenable number.

14221 is a deficient number, since it is larger than the sum of its proper divisors (1).

14221 is an equidigital number, since it uses as much as digits as its factorization.

14221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16, while the sum is 10.

The square root of 14221 is about 119.2518343674. The cubic root of 14221 is about 24.2275805121.

The spelling of 14221 in words is "fourteen thousand, two hundred twenty-one", and thus it is an iban number.