199221133 has 2 divisors, whose sum is σ = 199221134. Its totient is φ = 199221132.

The previous prime is 199221119. The next prime is 199221151. The reversal of 199221133 is 331122991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195916009 + 3305124 = 13997^2 + 1818^2 .

It is a cyclic number.

It is not a de Polignac number, because 199221133 - 2⁹ = 199220621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 199221095 and 199221104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199221433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99610566 + 99610567.

It is an arithmetic number, because the mean of its divisors is an integer number (99610567).

Almost surely, 2^199221133 is an apocalyptic number.

It is an amenable number.

199221133 is a deficient number, since it is larger than the sum of its proper divisors (1).

199221133 is an equidigital number, since it uses as much as digits as its factorization.

199221133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 31.

The square root of 199221133 is about 14114.5716548537. The cubic root of 199221133 is about 584.0434197482.

The spelling of 199221133 in words is "one hundred ninety-nine million, two hundred twenty-one thousand, one hundred thirty-three".