Adding to 331022 its reverse (220133), we get a palindrome (551155).
Subtracting from 331022 its reverse (220133), we obtain a square (110889 = 3332).
331022 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It is an Ulam number.
It is a congruent number.
331022 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
2331022 is an apocalyptic number.
331022 is a wasteful number, since it uses less digits than its factorization.
331022 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 165513.
The square root of 331022 is about 575.3451138230. The cubic root of 331022 is about 69.1754966872.
The spelling of 331022 in words is "three hundred thirty-one thousand, twenty-two".