200210111120081 has 2 divisors, whose sum is σ = 200210111120082. Its totient is φ = 200210111120080.

The previous prime is 200210111120059. The next prime is 200210111120167. The reversal of 200210111120081 is 180021111012002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133212939487681 + 66997171632400 = 11541791^2 + 8185180^2 .

It is a cyclic number.

It is not a de Polignac number, because 200210111120081 - 2²⁶ = 200210044011217 is a prime.

It is a super-2 number, since 2×200210111120081² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (200210111720081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100105055560040 + 100105055560041.

It is an arithmetic number, because the mean of its divisors is an integer number (100105055560041).

Almost surely, 2^{200210111120081} is an apocalyptic number.

It is an amenable number.

200210111120081 is a deficient number, since it is larger than the sum of its proper divisors (1).

200210111120081 is an equidigital number, since it uses as much as digits as its factorization.

200210111120081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 200210111120081 its reverse (180021111012002), we get a palindrome (380231222132083).

The spelling of 200210111120081 in words is "two hundred trillion, two hundred ten billion, one hundred eleven million, one hundred twenty thousand, eighty-one".