331222330 has 8 divisors (see below), whose sum is σ = 596200212. Its totient is φ = 132488928.

The previous prime is 331222327. The next prime is 331222337. The reversal of 331222330 is 33222133.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 324612289 + 6610041 = 18017^2 + 2571^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 331222298 and 331222307.

It is not an unprimeable number, because it can be changed into a prime (331222337) 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, 16561107 + ... + 16561126.

Almost surely, 2^331222330 is an apocalyptic number.

331222330 is a deficient number, since it is larger than the sum of its proper divisors (264977882).

331222330 is a wasteful number, since it uses less digits than its factorization.

331222330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33122240.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 331222330 is about 18199.5145539654. The cubic root of 331222330 is about 691.8944856219.

Adding to 331222330 its reverse (33222133), we get a palindrome (364444463).

The spelling of 331222330 in words is "three hundred thirty-one million, two hundred twenty-two thousand, three hundred thirty".