198922239999 has 18 divisors (see below), whose sum is σ = 334243492440. Its totient is φ = 113669851176.

The previous prime is 198922239977. The next prime is 198922240003. The reversal of 198922239999 is 999932229891.

198922239999 is a `hidden beast` number, since 1 + 9 + 8 + 9 + 222 + 399 + 9 + 9 = 666.

It is not a de Polignac number, because 198922239999 - 2⁷ = 198922239871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198922239959) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 225534979 + ... + 225535860.

Almost surely, 2^198922239999 is an apocalyptic number.

198922239999 is a deficient number, since it is larger than the sum of its proper divisors (135321252441).

198922239999 is a wasteful number, since it uses less digits than its factorization.

198922239999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451070859 (or 451070849 counting only the distinct ones).

The product of its digits is 102036672, while the sum is 72.

The spelling of 198922239999 in words is "one hundred ninety-eight billion, nine hundred twenty-two million, two hundred thirty-nine thousand, nine hundred ninety-nine".