Application for academics

I want an application that has: A rich text editor built in. A main menu with an intuitive interface for easy navigation. It should be able to record my class periods' times. Have a calender built-in with an agenda/to-do list Automatically sync between my devices in terms of calender events, homework, files. (iPhone, iPad, Win 7 PC) Be able to mark a page as homework or assignment directly from the document or *.pdf. Reminders built-in