0
1223-65 = 1158
Yes. 1223 is a prime number.
789 years from 1223 to 2012
1223 grams = 2.69625347 pounds
There are 0.3048 metres in one foot. Therefore, rounded to two decimal places, 1223 metres is equal to 1223/0.3048 = 4012.47 feet.