20201022198 has 48 divisors (see below), whose sum is σ = 50768190720. Its totient is φ = 5685573168.

The previous prime is 20201022181. The next prime is 20201022203. The reversal of 20201022198 is 89122010202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1188018 + ... + 1204901.

It is an arithmetic number, because the mean of its divisors is an integer number (1057670640).

Almost surely, 2^20201022198 is an apocalyptic number.

20201022198 is an abundant number, since it is smaller than the sum of its proper divisors (30567168522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20201022198 is a wasteful number, since it uses less digits than its factorization.

20201022198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2393001 (or 2392998 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 20201022198 in words is "twenty billion, two hundred one million, twenty-two thousand, one hundred ninety-eight".