200210081 has 2 divisors, whose sum is σ = 200210082. Its totient is φ = 200210080.

The previous prime is 200210057. The next prime is 200210099. The reversal of 200210081 is 180012002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 151782400 + 48427681 = 12320^2 + 6959^2 .

It is a cyclic number.

It is not a de Polignac number, because 200210081 - 2¹⁰ = 200209057 is a prime.

It is a super-2 number, since 2×200210081² = 80168153068053122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (200210041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100105040 + 100105041.

It is an arithmetic number, because the mean of its divisors is an integer number (100105041).

Almost surely, 2^200210081 is an apocalyptic number.

It is an amenable number.

200210081 is a deficient number, since it is larger than the sum of its proper divisors (1).

200210081 is an equidigital number, since it uses as much as digits as its factorization.

200210081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 200210081 is about 14149.5611592727. The cubic root of 200210081 is about 585.0082361808.

Adding to 200210081 its reverse (180012002), we get a palindrome (380222083).

The spelling of 200210081 in words is "two hundred million, two hundred ten thousand, eighty-one".