335000021 has 2 divisors, whose sum is σ = 335000022. Its totient is φ = 335000020.

The previous prime is 335000009. The next prime is 335000033. The reversal of 335000021 is 120000533.

It is a balanced prime because it is at equal distance from previous prime (335000009) and next prime (335000033).

It can be written as a sum of positive squares in only one way, i.e., 258244900 + 76755121 = 16070^2 + 8761^2 .

It is a cyclic number.

It is not a de Polignac number, because 335000021 - 2¹⁰ = 334998997 is a prime.

It is a super-2 number, since 2×335000021² = 224450028140000882, 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 (335000921) 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, 167500010 + 167500011.

It is an arithmetic number, because the mean of its divisors is an integer number (167500011).

Almost surely, 2^335000021 is an apocalyptic number.

It is an amenable number.

335000021 is a deficient number, since it is larger than the sum of its proper divisors (1).

335000021 is an equidigital number, since it uses as much as digits as its factorization.

335000021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 335000021 is about 18303.0057913994. The cubic root of 335000021 is about 694.5149703155.

Adding to 335000021 its reverse (120000533), we get a palindrome (455000554).

The spelling of 335000021 in words is "three hundred thirty-five million, twenty-one", and thus it is an aban number.