Default (Q)A few important questions

I have a few questions that i figured i should ask on here because who better to ask than all you experienced people so here we go

1.Is there an app sorta like google voice where i can set-up a second number that can receive texts and calls and goes to my phone?
2.Is there a scrambler app that will make my phone untraceable?Is that possible without a actual expensive device?
3.can i make my phone tell me if my phone call is being recorded?
4.What are some good apps for mobile security,back up to pc programs,and i also want an tool app where i can control everything if thats possible