This is a smoking building

Option 1: Go to Home Depot (there's one on 3rd ave at 58th St), get a can of minimally expanding spray foam, and apply it to the holes around the water and gas pipes.
Option 2: Make sure your front door seals tightly -- you can install gaskets that will significantly reduce air coming in from the hallways.
Option 3: Create a positive air pressure in the apartment so that air isn't pulled in from the hallways, cracks in the walls, etc.. Do this by closing off (or reducing the air flow) of the bathroom and kitchen vents, and keeping an exterior window open more often.

Actually cigarette smoke can legally be considered a nuisance. I would check with an attorney.

https://www.nolo.com/legal-encyclopedia/when-secondhand-smoke-invades-home-29946.html

Also take a look at this page: https://no-smoke.org/smoker-next-door/
There're some pieces of advice just in case you don't want to talk to your landlord directly.