200211121221173 has 2 divisors, whose sum is σ = 200211121221174. Its totient is φ = 200211121221172.

The previous prime is 200211121221119. The next prime is 200211121221239. The reversal of 200211121221173 is 371122121112002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197228374615204 + 2982746605969 = 14043802^2 + 1727063^2 .

It is a cyclic number.

It is not a de Polignac number, because 200211121221173 - 2⁶ = 200211121221109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200211121221473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100105560610586 + 100105560610587.

It is an arithmetic number, because the mean of its divisors is an integer number (100105560610587).

Almost surely, 2^{200211121221173} is an apocalyptic number.

It is an amenable number.

200211121221173 is a deficient number, since it is larger than the sum of its proper divisors (1).

200211121221173 is an equidigital number, since it uses as much as digits as its factorization.

200211121221173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 26.

Adding to 200211121221173 its reverse (371122121112002), we get a palindrome (571333242333175).

The spelling of 200211121221173 in words is "two hundred trillion, two hundred eleven billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred seventy-three".