I think,that "整" always used to appear with "个". “整个”and"全" all likely mean "whole , all over..." . Example:整个世界=全世界 ，整个学校=全校/全学校 整 is more to describe a whole situation,but not a single thing. may be like the following example. "the whole body" will be said as 全身. No one would use "整身". When you just like to use 整 ,you have only to say it as “整个身体”. meanwhile,整 can also be a verb -- 整理. Than it means to make something in order or clean. Example: clean up the room = 整理房间 hope they will help you to understand these two single words.:D

this is the same, i think there is no different special. in different environment We use a different phrase match. for example, 全部 and 整个, quanbu can be used to a lot of peoples, 全部人都来了. we can't say: 整个人都来了, ils wrong beucause one people can't be half one.

全：pure jade -> complete. 整：tidy and in good order -> without extra part -> just a whole one. They may have the samilar meaning. Nowadays, 全 used more often than 整.

完整，全部

完整：强调的是整体，系统。 全部：强调的是数量。 应用不同