335340221 has 2 divisors, whose sum is σ = 335340222. Its totient is φ = 335340220.

The previous prime is 335340209. The next prime is 335340233. The reversal of 335340221 is 122043533.

It is a balanced prime because it is at equal distance from previous prime (335340209) and next prime (335340233).

It can be written as a sum of positive squares in only one way, i.e., 213568996 + 121771225 = 14614^2 + 11035^2 .

It is a cyclic number.

It is not a de Polignac number, because 335340221 - 2¹⁰ = 335339197 is a prime.

It is a super-2 number, since 2×335340221² = 224906127640657682, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (335343221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167670110 + 167670111.

It is an arithmetic number, because the mean of its divisors is an integer number (167670111).

Almost surely, 2^335340221 is an apocalyptic number.

It is an amenable number.

335340221 is a deficient number, since it is larger than the sum of its proper divisors (1).

335340221 is an equidigital number, since it uses as much as digits as its factorization.

335340221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 335340221 is about 18312.2969886358. The cubic root of 335340221 is about 694.7499892635.

Adding to 335340221 its reverse (122043533), we get a palindrome (457383754).

The spelling of 335340221 in words is "three hundred thirty-five million, three hundred forty thousand, two hundred twenty-one".