206220456223 has 2 divisors, whose sum is σ = 206220456224. Its totient is φ = 206220456222.

The previous prime is 206220456179. The next prime is 206220456229. The reversal of 206220456223 is 322654022602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 206220456223 - 2³³ = 197630521631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206220456229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103110228111 + 103110228112.

It is an arithmetic number, because the mean of its divisors is an integer number (103110228112).

Almost surely, 2^206220456223 is an apocalyptic number.

206220456223 is a deficient number, since it is larger than the sum of its proper divisors (1).

206220456223 is an equidigital number, since it uses as much as digits as its factorization.

206220456223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 206220456223 its reverse (322654022602), we get a palindrome (528874478825).

The spelling of 206220456223 in words is "two hundred six billion, two hundred twenty million, four hundred fifty-six thousand, two hundred twenty-three".