Can hand sanitizer kill sperm cells on my hands immediately on contact? Will it kill all of them? How fast does it kill them?

Here are some... What you described may suggest personal anxiety to get pregnant. As to possible sperms-killing effect of sanitizer spread, I'm afraid of no specific study being done to address your Q. Nonetheless, the described scenario and what you did would give sperms almost no odd to fertilize an egg in considering the specific and fastidious requirements for sperm survival. More? Ask doc timely...