335221 has 2 divisors, whose sum is σ = 335222. Its totient is φ = 335220.

The previous prime is 335213. The next prime is 335249. The reversal of 335221 is 122533.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 239121 + 96100 = 489^2 + 310^2 .

It is an emirp because it is prime and its reverse (122533) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 335221 - 2³ = 335213 is a prime.

It is a super-2 number, since 2×335221² = 224746237682, which contains 22 as substring.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 335195 and 335204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (335261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167610 + 167611.

It is an arithmetic number, because the mean of its divisors is an integer number (167611).

2³³⁵²²¹ is an apocalyptic number.

It is an amenable number.

335221 is a deficient number, since it is larger than the sum of its proper divisors (1).

335221 is an equidigital number, since it uses as much as digits as its factorization.

335221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 180, while the sum is 16.

The square root of 335221 is about 578.9827285852. The cubic root of 335221 is about 69.4667646416.

Adding to 335221 its reverse (122533), we get a palindrome (457754).

The spelling of 335221 in words is "three hundred thirty-five thousand, two hundred twenty-one".