Two is an even number. This is a number of partnership, companionship, and marriage. Eve was sent to be helpmate for Adam. She came second, was 2. The number faces and bends toward the 1 because the 2 wants to help. It feels incomplete by itself.
The 2 is associated with pairs of things, as it is already seen by the Roman two, II. That is also 11, which adds up to 2, but on a higher level. Where 2 is a follower, II stands on its own two feet, showing leadership ability. The 2 is stronger on Earth than the 11 for its base is straight on the ground:2.