As others have stated, it’s a parallel circuit. No matter which of the five outlets on the strip you use, they all share the same end points. The voltage drop between those points is the same no matter which path the electricity flows. While a diagram may show parallel lines, as far as the electricity is concerned, it’s all just one single point.
As I can’t post pictures from my phone very easily, the best visual I can give is this; take 5 twist-ties, put them together, and then just twist only the ends. You’ll have 5 middles, but only 2 ends. Five lines that are electrically parallel regardless of their physical shape. Five lines with common ends, and you’ll get 110v no matter which line you choose.
In a series circuit, the voltage across each load would vary based in it’s resistance; it wouldn’t necessarily be 22v across each load unless all five loads had equal resistance.