Create a List:int from a string

Create a List:int from a string

Hello,
 
I would like to create a List of integers from a string that contains integers separated by ",".
 
For example, I have the following string:
 
mystring = "106215000000457125,106215000000457129,106215000000457132";
 
and I woulk like to create a integer list with those values, like myintegerlist = {106215000000457125,106215000000457129,106215000000457132}
 
My final objective is calling a function that has this list as parameter
 
How can I do that?
 
Thanks,
 
Fidel