x axis at our desired number of points

I have:

tmax = 1.2*0.1*10^11; Plot[t^5, {t, 0, tmax}] 

dd Then I get a picture as above. This is pretty easy data and the width of two points in x axis won’t affect the clarity of the figure. I used this example to let you know my requirement. In MATLAB, we have an option to set the width of the x axis. Look at the second line of the below code in MATLAB.

tmax=1.2*0.1*10^11; tt=0:0.1/100*10^11:1.2*0.1*10^11; 

How to select the plot width as 0.1/100*10^11 in mathematica as easy as in MATLAB. I have asked a similar question earlier and the suggestion I got is really difficult and I didn’t really understand. Is there any easy way? I have searched the documentations and can’t come up with any!