200200210200181 has 2 divisors, whose sum is σ = 200200210200182. Its totient is φ = 200200210200180.

The previous prime is 200200210200173. The next prime is 200200210200209. The reversal of 200200210200181 is 181002012002002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197075832256900 + 3124377943281 = 14038370^2 + 1767591^2 .

It is a cyclic number.

It is not a de Polignac number, because 200200210200181 - 2³ = 200200210200173 is a prime.

It is a super-2 number, since 2×200200210200181² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200200210203181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100100105100090 + 100100105100091.

It is an arithmetic number, because the mean of its divisors is an integer number (100100105100091).

Almost surely, 2^{200200210200181} is an apocalyptic number.

It is an amenable number.

200200210200181 is a deficient number, since it is larger than the sum of its proper divisors (1).

200200210200181 is an equidigital number, since it uses as much as digits as its factorization.

200200210200181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 200200210200181 its reverse (181002012002002), we get a palindrome (381202222202183).

The spelling of 200200210200181 in words is "two hundred trillion, two hundred billion, two hundred ten million, two hundred thousand, one hundred eighty-one".