198220110112 has 48 divisors (see below), whose sum is σ = 400077581400. Its totient is φ = 96616898560.

The previous prime is 198220110083. The next prime is 198220110133. The reversal of 198220110112 is 211011022891.

It can be written as a sum of positive squares in 4 ways, for example, as 110625420816 + 87594689296 = 332604^2 + 295964^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1632564 + ... + 1749772.

Almost surely, 2^198220110112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198220110112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200038790700).

198220110112 is an abundant number, since it is smaller than the sum of its proper divisors (201857471288).

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

198220110112 is a wasteful number, since it uses less digits than its factorization.

198220110112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118549 (or 118541 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 28.

The spelling of 198220110112 in words is "one hundred ninety-eight billion, two hundred twenty million, one hundred ten thousand, one hundred twelve".