335670221 has 2 divisors, whose sum is σ = 335670222. Its totient is φ = 335670220.

The previous prime is 335670199. The next prime is 335670227. The reversal of 335670221 is 122076533.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 302377321 + 33292900 = 17389^2 + 5770^2 .

It is a cyclic number.

It is not a de Polignac number, because 335670221 - 2¹⁰ = 335669197 is a prime.

It is a super-2 number, since 2×335670221² = 225348994532377682, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (335670227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167835110 + 167835111.

It is an arithmetic number, because the mean of its divisors is an integer number (167835111).

Almost surely, 2^335670221 is an apocalyptic number.

It is an amenable number.

335670221 is a deficient number, since it is larger than the sum of its proper divisors (1).

335670221 is an equidigital number, since it uses as much as digits as its factorization.

335670221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 335670221 is about 18321.3051118090. The cubic root of 335670221 is about 694.9778099638.

The spelling of 335670221 in words is "three hundred thirty-five million, six hundred seventy thousand, two hundred twenty-one".