Taking inspiration from "What is the word™" series, here the numbers conforms to a special rule, I call it a RAP number™. Use the following examples below to find the rule.
Note : This is my first crack at this type of puzzle, so suggestions and edits are welcome.
I don't think the CSV is needed here, but for those who need it, here it is
RAP number™, NOT RAP number™
12, 19
27, 78
43, 37
110, 193
122, 364
611, 561
5132, 5096
4703, 7961
25117, 25169
810221, 71423
Note : You can differentiate any number into these categories. This "Rule" can be applied to each and every number existed.
I am thinking about the way to give hint without spoiling the answer.
NOTE I am so sorry, I misprinted last number it is supposed to be 810221