In Jain time measurement, Sāgaropam is an extremely vast unit, far beyond ordinary human years.

If by Kalyug years you mean 1 Kaliyuga = 4,32,000 years, then 2000 Sāgaropam is not practically expressible in ordinary Kalyug years — it is infinitely larger in scale.

So the correct Jain answer is:

2000 Sāgaropam = an unimaginably huge period, much greater than many Kaliyugas combined.

If you want, I can also explain the Jain time units like samaya, avali, muhūrta, day, year, palya, and sāgaropam in simple form.