199222689 has 16 divisors (see below), whose sum is σ = 274015872. Its totient is φ = 128654208.

The previous prime is 199222631. The next prime is 199222693. The reversal of 199222689 is 986222991.

It is a happy number.

It is not a de Polignac number, because 199222689 - 2⁸ = 199222433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (199222589) 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, 22012 + ... + 29714.

It is an arithmetic number, because the mean of its divisors is an integer number (17125992).

Almost surely, 2^199222689 is an apocalyptic number.

It is an amenable number.

199222689 is a deficient number, since it is larger than the sum of its proper divisors (74793183).

199222689 is a wasteful number, since it uses less digits than its factorization.

199222689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7976.

The product of its digits is 279936, while the sum is 48.

The square root of 199222689 is about 14114.6267750869. The cubic root of 199222689 is about 584.0449402850.

The spelling of 199222689 in words is "one hundred ninety-nine million, two hundred twenty-two thousand, six hundred eighty-nine".