331222 has 4 divisors (see below), whose sum is σ = 496836. Its totient is φ = 165610.

The previous prime is 331217. The next prime is 331231. The reversal of 331222 is 222133.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222133 = 191 ⋅1163.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82804 + ... + 82807.

It is an arithmetic number, because the mean of its divisors is an integer number (124209).

2³³¹²²² is an apocalyptic number.

331222 is a deficient number, since it is larger than the sum of its proper divisors (165614).

331222 is a wasteful number, since it uses less digits than its factorization.

331222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165613.

The product of its digits is 72, while the sum is 13.

The square root of 331222 is about 575.5188963014. The cubic root of 331222 is about 69.1894255841.

Adding to 331222 its reverse (222133), we get a palindrome (553355).

It can be divided in two parts, 33122 and 2, that added together give a square (33124 = 182²).

The spelling of 331222 in words is "three hundred thirty-one thousand, two hundred twenty-two".