198216112 has 10 divisors (see below), whose sum is σ = 384043748. Its totient is φ = 99108048.

The previous prime is 198216103. The next prime is 198216119. The reversal of 198216112 is 211612891.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (198216119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6194238 + ... + 6194269.

Almost surely, 2^198216112 is an apocalyptic number.

It is an amenable number.

198216112 is a deficient number, since it is larger than the sum of its proper divisors (185827636).

198216112 is a wasteful number, since it uses less digits than its factorization.

198216112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12388515 (or 12388509 counting only the distinct ones).

The product of its digits is 1728, while the sum is 31.

The square root of 198216112 is about 14078.9243907338. The cubic root of 198216112 is about 583.0596457250.

The spelling of 198216112 in words is "one hundred ninety-eight million, two hundred sixteen thousand, one hundred twelve".