It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is an unprimeable number.
21123222 is an apocalyptic number.
1123222 is an equidigital number, since it uses as much as digits as its factorization.
1123222 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7190.
The square root of 1123222 is about 1059.8216831147. The cubic root of 1123222 is about 103.9493713138.
Adding to 1123222 its reverse (2223211), we get a palindrome (3346433).
The spelling of 1123222 in words is "one million, one hundred twenty-three thousand, two hundred twenty-two".