Is it possible to change email on published paper?
You could do the following things in this situation. But, it depends on (1) whether it is a journal paper or a conference paper?, (2) whether it is already published as offprint?


Politely ask the publisher about it (as it is a mistake done on your part). (credit: @Dirk)
E-mail the editor of the journal (if journal paper) and request to publish an Erratum on your behalf. (credit: @PsySp)
Publish an erratum on your personal web page or blog.