331830222 has 8 divisors (see below), whose sum is σ = 663660456. Its totient is φ = 110610072.

The previous prime is 331830203. The next prime is 331830241. The reversal of 331830222 is 222038133.

It is an interprime number because it is at equal distance from previous prime (331830203) and next prime (331830241).

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

331830222 is an admirable number.

It is a super-2 number, since 2×331830222² = 220222592465138568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331830192 and 331830201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27652513 + ... + 27652524.

It is an arithmetic number, because the mean of its divisors is an integer number (82957557).

Almost surely, 2^331830222 is an apocalyptic number.

331830222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331830222 is a wasteful number, since it uses less digits than its factorization.

331830222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55305042.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 331830222 is about 18216.2076733880. The cubic root of 331830222 is about 692.3175046833.

Adding to 331830222 its reverse (222038133), we get a palindrome (553868355).

The spelling of 331830222 in words is "three hundred thirty-one million, eight hundred thirty thousand, two hundred twenty-two".