200202112120181 has 2 divisors, whose sum is σ = 200202112120182. Its totient is φ = 200202112120180.

The previous prime is 200202112120169. The next prime is 200202112120243. The reversal of 200202112120181 is 181021211202002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127160219053156 + 73041893067025 = 11276534^2 + 8546455^2 .

It is a cyclic number.

It is not a de Polignac number, because 200202112120181 - 2²⁶ = 200202045011317 is a prime.

It is a super-2 number, since 2×200202112120181² (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 (200202112120141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100101056060090 + 100101056060091.

It is an arithmetic number, because the mean of its divisors is an integer number (100101056060091).

Almost surely, 2^{200202112120181} is an apocalyptic number.

It is an amenable number.

200202112120181 is a deficient number, since it is larger than the sum of its proper divisors (1).

200202112120181 is an equidigital number, since it uses as much as digits as its factorization.

200202112120181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 23.

Adding to 200202112120181 its reverse (181021211202002), we get a palindrome (381223323322183).

The spelling of 200202112120181 in words is "two hundred trillion, two hundred two billion, one hundred twelve million, one hundred twenty thousand, one hundred eighty-one".