https://www.thegatewaypundit.com/2022/10/no-single-war-ukraine-nato-trouble/
At the beginning of its full-scale invasion in Feb., Russia had around 3,330 operational tanks (2,840 with the ground forces, 330 with its naval infantry, and 160 with its airborne forces), according to the Military Balance 2021 database. . . .
However, Russia still has some 2,000 battle-ready tanks at hand, as well as an enormous amount in storage.
The Military Balance 2021 database says Russian storage facilities have around 10,200 tanks, including various T-72s, 3,000 T-80s, and 200 T-90s.
https://ukrainetoday.org/2022/09/01/how-many-tanks-does-russia-really-have/