I have a 22 volt reading in an outlet. What do I do about this?

Get it repaired so the correct supply voltage is at the outlet.

I will assume your using a digital volt meter, which will read low induced voltages. The 22 volts you see is effectively zero volts.

Possibly a loose/bad connection.
Using an extension cord plugged into a good receptacle can be used as a reference to determine if you have a bad neutral or a bad hot.