Creating a 2:20 vid for twitter

there are strict guidelines to be able to upload a 2:20 video to twitter
“Aspect ratios: 1:2.39 - 2.39:1 range (inclusive)” is 1 of them and i cannot seem to adjust that setting

any guidance is most appreciated

2:20 ratio? I don’t think so.
That would mean a video with 640 pixel width would result in a 6,400 pixel height.

2.39:1 is Anamorphic / Wide-Screen cinema standard.
http://www.red.com/learn/red-101/video-aspect-ratios

Why not just stick with 16:9 ratio as specified?
From Twitter;

Uploaded video should be either mp4 or mov with an aspect ratio of 16:9. Uploaded video generally processes quite quickly, but processing times can vary depending on video length and file size.