Hey everyone, im learning the famous Satch song surfing with the alien, and im stuck on the first solo i.e:

T P T P T P T P T P T P T P T P T P
E--22--21--22--21--22--21--22--21--22--21--22--21--22--21--22--19--22--|--19--
B----------------------------------------------------------------------|------
G----------------------------------------------------------------------|------
D----------------------------------------------------------------------|------
A----------------------------------------------------------------------|------
E----------------------------------------------------------------------|------

now how exactly do I tap the 22nd fret with my right hand? its very awkward whilst alternate picking simultaneously.

any help much appreciated

Wiz