My ipad sayin try again in 22,640,826 minutes

You are going to have to plug in your iPad into a computer with iTunes installed. Then, do a restore on your device. To learn more about restoring your device through iTunes, go to: http://support.apple.com/kb/ht1414. You will probably need to restore your device using recovery mode. To learn more about recovery mode, visit: http://support.apple.com/kb/ht4097