200002211020181 has 2 divisors, whose sum is σ = 200002211020182. Its totient is φ = 200002211020180.

The previous prime is 200002211020163. The next prime is 200002211020237. The reversal of 200002211020181 is 181020112200002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111228767715025 + 88773443305156 = 10546505^2 + 9421966^2 .

It is a cyclic number.

It is not a de Polignac number, because 200002211020181 - 2¹⁴ = 200002211003797 is a prime.

It is a super-2 number, since 2×200002211020181² (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 (200002711020181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100001105510090 + 100001105510091.

It is an arithmetic number, because the mean of its divisors is an integer number (100001105510091).

Almost surely, 2^{200002211020181} is an apocalyptic number.

It is an amenable number.

200002211020181 is a deficient number, since it is larger than the sum of its proper divisors (1).

200002211020181 is an equidigital number, since it uses as much as digits as its factorization.

200002211020181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 200002211020181 its reverse (181020112200002), we get a palindrome (381022323220183).

The spelling of 200002211020181 in words is "two hundred trillion, two billion, two hundred eleven million, twenty thousand, one hundred eighty-one".