200211011110021 has 2 divisors, whose sum is σ = 200211011110022. Its totient is φ = 200211011110020.

The previous prime is 200211011109997. The next prime is 200211011110043. The reversal of 200211011110021 is 120011110112002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113555131250625 + 86655879859396 = 10656225^2 + 9308914^2 .

It is a cyclic number.

It is not a de Polignac number, because 200211011110021 - 2⁴¹ = 198011987854469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200211011109983 and 200211011110010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200211011110051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100105505555010 + 100105505555011.

It is an arithmetic number, because the mean of its divisors is an integer number (100105505555011).

Almost surely, 2^{200211011110021} is an apocalyptic number.

It is an amenable number.

200211011110021 is a deficient number, since it is larger than the sum of its proper divisors (1).

200211011110021 is an equidigital number, since it uses as much as digits as its factorization.

200211011110021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 200211011110021 its reverse (120011110112002), we get a palindrome (320222121222023).

The spelling of 200211011110021 in words is "two hundred trillion, two hundred eleven billion, eleven million, one hundred ten thousand, twenty-one".