At 22 weeks a Production RIR would be crowing and have a much larger comb and wattles if it was male. I would say it is a female just taking time to lay. Or she may be laying in a location you have not yet found. Mine are 14 weeks and just getting little combs and wattles. I am guessing they will be at least 20 weeks before they lay. My BR's and Orp's are much more mature at 16 weeks. Fuller wattles and combs, they will probably start laying in next couple of weeks. They are squating and allowing my 21 week old Orp cockerel to mount them. Be patient. It will happen.