335211421 has 2 divisors, whose sum is σ = 335211422. Its totient is φ = 335211420.

The previous prime is 335211413. The next prime is 335211439. The reversal of 335211421 is 124112533.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 171243396 + 163968025 = 13086^2 + 12805^2 .

It is a cyclic number.

It is not a de Polignac number, because 335211421 - 2³ = 335211413 is a prime.

It is a super-2 number, since 2×335211421² = 224733393537678482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 335211392 and 335211401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (335211521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167605710 + 167605711.

It is an arithmetic number, because the mean of its divisors is an integer number (167605711).

Almost surely, 2^335211421 is an apocalyptic number.

It is an amenable number.

335211421 is a deficient number, since it is larger than the sum of its proper divisors (1).

335211421 is an equidigital number, since it uses as much as digits as its factorization.

335211421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 22.

The square root of 335211421 is about 18308.7798883486. The cubic root of 335211421 is about 694.6610296020.

Adding to 335211421 its reverse (124112533), we get a palindrome (459323954).

The spelling of 335211421 in words is "three hundred thirty-five million, two hundred eleven thousand, four hundred twenty-one".