Definition: In this task you will be given a list of numbers. You should remove any number that is not an integer (whole number). If every number is not an whole number then an empty list ("[]") should be returned. Otherwise, answer with the list of whole numbers separated by comma inside brackets.
Input: [20.473, 27, 47, -39, 61, -11.367, 15.408, -27.713, 27.922, -62.28, -1.821]

[27, 47, -39, 61]