If these lumps are tiny bumps that ring the rim of the penis head and are flesh-colored or a little lighter and have a smooth dome shape, probably, are harmless, normal growths known as a pearly penile papules.
They can be arranged in one or several rows and often are assumed wrongly to be a genital warts.
Penile warts would be painful, itchy and causing burning penis.
If you are concerned contact your physician for the true evaluation.
Best wishes!
Marija