334021221 has 12 divisors (see below), whose sum is σ = 484183648. Its totient is φ = 221892264.

The previous prime is 334021213. The next prime is 334021223. The reversal of 334021221 is 122120433.

It is not a de Polignac number, because 334021221 - 2³ = 334021213 is a prime.

It is a super-2 number, since 2×334021221² = 223140352156661682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 334021194 and 334021203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (334021223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63025 + ... + 68118.

Almost surely, 2^334021221 is an apocalyptic number.

It is an amenable number.

334021221 is a deficient number, since it is larger than the sum of its proper divisors (150162427).

334021221 is a wasteful number, since it uses less digits than its factorization.

334021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131432 (or 131429 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 334021221 is about 18276.2474540043. The cubic root of 334021221 is about 693.8379013042.

Adding to 334021221 its reverse (122120433), we get a palindrome (456141654).

The spelling of 334021221 in words is "three hundred thirty-four million, twenty-one thousand, two hundred twenty-one".