331014221 has 4 divisors (see below), whose sum is σ = 332927772. Its totient is φ = 329100672.

The previous prime is 331014199. The next prime is 331014227. The reversal of 331014221 is 122410133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122410133 = 41 ⋅2985613.

It can be written as a sum of positive squares in 2 ways, for example, as 204204100 + 126810121 = 14290^2 + 11261^2 .

It is a cyclic number.

It is not a de Polignac number, because 331014221 - 2¹⁰ = 331013197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 331014221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331014227) 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, 956516 + ... + 956861.

It is an arithmetic number, because the mean of its divisors is an integer number (83231943).

Almost surely, 2^331014221 is an apocalyptic number.

It is an amenable number.

331014221 is a deficient number, since it is larger than the sum of its proper divisors (1913551).

331014221 is a wasteful number, since it uses less digits than its factorization.

331014221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913550.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 331014221 is about 18193.7962228887. The cubic root of 331014221 is about 691.7495480945.

Adding to 331014221 its reverse (122410133), we get a palindrome (453424354).

The spelling of 331014221 in words is "three hundred thirty-one million, fourteen thousand, two hundred twenty-one".