It is a sphenic number, since it is the product of 3 distinct primes.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 120243221.
It is a congruent number.
Almost surely, 2120243221 is an apocalyptic number.
It is an amenable number.
120243221 is a wasteful number, since it uses less digits than its factorization.
120243221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13891.
The square root of 120243221 is about 10965.5469995801. The cubic root of 120243221 is about 493.5754314028.
Adding to 120243221 its reverse (122342021), we get a palindrome (242585242).
The spelling of 120243221 in words is "one hundred twenty million, two hundred forty-three thousand, two hundred twenty-one".