Zayn Malik's right arm has a whole mess of tattoos. In this picture you can see the bandana wrapped around the top of his arm, near his elbow. Below that he has the word "Chillin" with a little palm tree. In the middle of his arm he has a hand with fingers crossed. Beneath that you can see a number, and it's part of his X Factor audition number, 165616, which he has scattered around the arm. Other than the X Factor number, we don't necessarily know the reasoning behind these other tattoos.