199115922 has 16 divisors (see below), whose sum is σ = 415546560. Its totient is φ = 63486192.

The previous prime is 199115911. The next prime is 199115927. The reversal of 199115922 is 229511991.

199115922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (199115927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 721297 + ... + 721572.

It is an arithmetic number, because the mean of its divisors is an integer number (25971660).

Almost surely, 2^199115922 is an apocalyptic number.

199115922 is an abundant number, since it is smaller than the sum of its proper divisors (216430638).

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

199115922 is a wasteful number, since it uses less digits than its factorization.

199115922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442897.

The product of its digits is 14580, while the sum is 39.

The square root of 199115922 is about 14110.8441278330. The cubic root of 199115922 is about 583.9405882671.

The spelling of 199115922 in words is "one hundred ninety-nine million, one hundred fifteen thousand, nine hundred twenty-two".