334242221 has 4 divisors (see below), whose sum is σ = 340548732. Its totient is φ = 327935712.

The previous prime is 334242211. The next prime is 334242247. The reversal of 334242221 is 122242433.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 143664196 + 190578025 = 11986^2 + 13805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-334242221 is a prime.

It is a super-2 number, since 2×334242221² = 223435724598025682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (334242211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3153176 + ... + 3153281.

It is an arithmetic number, because the mean of its divisors is an integer number (85137183).

Almost surely, 2^334242221 is an apocalyptic number.

It is an amenable number.

334242221 is a deficient number, since it is larger than the sum of its proper divisors (6306511).

334242221 is an equidigital number, since it uses as much as digits as its factorization.

334242221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6306510.

The product of its digits is 2304, while the sum is 23.

The square root of 334242221 is about 18282.2925531783. The cubic root of 334242221 is about 693.9908899578.

Adding to 334242221 its reverse (122242433), we get a palindrome (456484654).

The spelling of 334242221 in words is "three hundred thirty-four million, two hundred forty-two thousand, two hundred twenty-one".