198209199101 has 16 divisors (see below), whose sum is σ = 217463408640. Its totient is φ = 179820076800.

The previous prime is 198209199073. The next prime is 198209199107. The reversal of 198209199101 is 101991902891.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198209199101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 198209199101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198209199107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31925 + ... + 630426.

It is an arithmetic number, because the mean of its divisors is an integer number (13591463040).

Almost surely, 2^198209199101 is an apocalyptic number.

It is an amenable number.

198209199101 is a deficient number, since it is larger than the sum of its proper divisors (19254209539).

198209199101 is a wasteful number, since it uses less digits than its factorization.

198209199101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663004.

The product of its (nonzero) digits is 104976, while the sum is 50.

The spelling of 198209199101 in words is "one hundred ninety-eight billion, two hundred nine million, one hundred ninety-nine thousand, one hundred one".