22 is the number of people who last year registered for EclipseCon on December 31, New Years Eve. Each year New Years Eve is one of the most popular days to register for EclipseCon since it is the last day for the very early registration prices.
This year, people should register before New Years Eve and spend December 31 relaxing with family and friends. If you are going to EclipseCon, why not just register now; it takes less than five minutes.
Happy New Year!