198101122 has 8 divisors (see below), whose sum is σ = 301222476. Its totient is φ = 97693632.

The previous prime is 198101107. The next prime is 198101131. The reversal of 198101122 is 221101891.

It can be written as a sum of positive squares in 2 ways, for example, as 189035001 + 9066121 = 13749^2 + 3011^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678283 + ... + 678574.

Almost surely, 2^198101122 is an apocalyptic number.

198101122 is a deficient number, since it is larger than the sum of its proper divisors (103121354).

198101122 is a wasteful number, since it uses less digits than its factorization.

198101122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356932.

The product of its (nonzero) digits is 288, while the sum is 25.

The square root of 198101122 is about 14074.8400346150. The cubic root of 198101122 is about 582.9468748758.

The spelling of 198101122 in words is "one hundred ninety-eight million, one hundred one thousand, one hundred twenty-two".