To download and verify the Google Play Store APK for Android 5.1.1 (Lollipop)
Warning: Avoid popular but dangerous sites like rexdl, apkpure (old versions), happy mod, or androidapksfree. These often bundle adware or require dangerous permissions. To download and verify the Google Play Store
CNET How To - Install the Google Play store on any Android device apkpure (old versions)
On Android 5.1.1: