206022241 has 4 divisors (see below), whose sum is σ = 206184852. Its totient is φ = 205859632.

The previous prime is 206022239. The next prime is 206022281. The reversal of 206022241 is 142220602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82901025 + 123121216 = 9105^2 + 11096^2 .

It is a cyclic number.

It is not a de Polignac number, because 206022241 - 2¹ = 206022239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206022281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79390 + ... + 81943.

It is an arithmetic number, because the mean of its divisors is an integer number (51546213).

Almost surely, 2^206022241 is an apocalyptic number.

It is an amenable number.

206022241 is a deficient number, since it is larger than the sum of its proper divisors (162611).

206022241 is a wasteful number, since it uses less digits than its factorization.

206022241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162610.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 206022241 is about 14353.4748754439. The cubic root of 206022241 is about 590.6153122941.

Adding to 206022241 its reverse (142220602), we get a palindrome (348242843).

The spelling of 206022241 in words is "two hundred six million, twenty-two thousand, two hundred forty-one".