How to calculate a mortgage pre-payment

[Gal Alberman]

Hi all,

I want to submit an offer to a landlord, and trying to make a rough estimation on how much does he still owes on the house. we currently have no mortgage statement in hand. 

I do have this info:

• mortgage is from Jan 2012
• loan amount is 465K
• interest is 4% fixed
• monthly payment is $2,222 (principal and interest)
• I used a calculator and found out it's a 30 years amortization (not sure)
• he was never been behind on payments
• he can prepay in the beginning of every month with no penalty 

based on the above, can we estimate how much does he has left to pay?