199011224 has 32 divisors (see below), whose sum is σ = 395010000. Its totient is φ = 93835392.

The previous prime is 199011223. The next prime is 199011229. The reversal of 199011224 is 422110991.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199011223) 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, 2 + ... + 19950.

Almost surely, 2^199011224 is an apocalyptic number.

It is an amenable number.

199011224 is a deficient number, since it is larger than the sum of its proper divisors (195998776).

199011224 is a wasteful number, since it uses less digits than its factorization.

199011224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20027 (or 20023 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 199011224 is about 14107.1337981888. The cubic root of 199011224 is about 583.8382222184.

The spelling of 199011224 in words is "one hundred ninety-nine million, eleven thousand, two hundred twenty-four".