334311221 has 2 divisors, whose sum is σ = 334311222. Its totient is φ = 334311220.

The previous prime is 334311209. The next prime is 334311259. The reversal of 334311221 is 122113433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 217887121 + 116424100 = 14761^2 + 10790^2 .

It is a cyclic number.

It is not a de Polignac number, because 334311221 - 2⁶ = 334311157 is a prime.

It is a super-2 number, since 2×334311221² = 223527984973021682, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 334311193 and 334311202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (334311281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167155610 + 167155611.

It is an arithmetic number, because the mean of its divisors is an integer number (167155611).

Almost surely, 2^334311221 is an apocalyptic number.

It is an amenable number.

334311221 is a deficient number, since it is larger than the sum of its proper divisors (1).

334311221 is an equidigital number, since it uses as much as digits as its factorization.

334311221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 20.

The square root of 334311221 is about 18284.1795276682. The cubic root of 334311221 is about 694.0386418313.

Adding to 334311221 its reverse (122113433), we get a palindrome (456424654).

The spelling of 334311221 in words is "three hundred thirty-four million, three hundred eleven thousand, two hundred twenty-one".