199216223 has 2 divisors, whose sum is σ = 199216224. Its totient is φ = 199216222.

The previous prime is 199216219. The next prime is 199216229. The reversal of 199216223 is 322612991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 199216223 - 2² = 199216219 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199216229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99608111 + 99608112.

It is an arithmetic number, because the mean of its divisors is an integer number (99608112).

Almost surely, 2^199216223 is an apocalyptic number.

199216223 is a deficient number, since it is larger than the sum of its proper divisors (1).

199216223 is an equidigital number, since it uses as much as digits as its factorization.

199216223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 35.

The square root of 199216223 is about 14114.3977200588. The cubic root of 199216223 is about 584.0386216013.

The spelling of 199216223 in words is "one hundred ninety-nine million, two hundred sixteen thousand, two hundred twenty-three".