331120219 has 2 divisors, whose sum is σ = 331120220. Its totient is φ = 331120218.

The previous prime is 331120211. The next prime is 331120241. The reversal of 331120219 is 912021133.

It is an a-pointer prime, because the next prime (331120241) can be obtained adding 331120219 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 331120219 - 2³ = 331120211 is a prime.

It is a super-2 number, since 2×331120219² = 219281198861215922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 331120219.

It is not a weakly prime, because it can be changed into another prime (331120211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165560109 + 165560110.

It is an arithmetic number, because the mean of its divisors is an integer number (165560110).

Almost surely, 2^331120219 is an apocalyptic number.

331120219 is a deficient number, since it is larger than the sum of its proper divisors (1).

331120219 is an equidigital number, since it uses as much as digits as its factorization.

331120219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 331120219 is about 18196.7090156435. The cubic root of 331120219 is about 691.8233779974.

The spelling of 331120219 in words is "three hundred thirty-one million, one hundred twenty thousand, two hundred nineteen".