18200210221229 has 2 divisors, whose sum is σ = 18200210221230. Its totient is φ = 18200210221228.

The previous prime is 18200210221169. The next prime is 18200210221243. The reversal of 18200210221229 is 92212201200281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15104377009225 + 3095833212004 = 3886435^2 + 1759498^2 .

It is a cyclic number.

It is not a de Polignac number, because 18200210221229 - 2⁴⁰ = 17100698593453 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18200210221195 and 18200210221204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18200210221729) 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, 9100105110614 + 9100105110615.

It is an arithmetic number, because the mean of its divisors is an integer number (9100105110615).

Almost surely, 2^{18200210221229} is an apocalyptic number.

It is an amenable number.

18200210221229 is a deficient number, since it is larger than the sum of its proper divisors (1).

18200210221229 is an equidigital number, since it uses as much as digits as its factorization.

18200210221229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 32.

The spelling of 18200210221229 in words is "eighteen trillion, two hundred billion, two hundred ten million, two hundred twenty-one thousand, two hundred twenty-nine".