My mom had a histerectomy and wants to know if she can still get hpv and the histerectomy had nothing to do with hpv

Since HPV is considered a STD, yes she can get it after a hysterectomy.

Here is a website from the Centers for Disease Control and Prevention that outlines HPV for you.

STD Facts - Human papillomavirus (HPV) (http://www.cdc.gov/STD/HPV/STDFact-HPV.htm)