200211102222121 has 2 divisors, whose sum is σ = 200211102222122. Its totient is φ = 200211102222120.

The previous prime is 200211102222077. The next prime is 200211102222133. The reversal of 200211102222121 is 121222201112002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182219626265625 + 17991475956496 = 13498875^2 + 4241636^2 .

It is a cyclic number.

It is not a de Polignac number, because 200211102222121 - 2¹⁹ = 200211101697833 is a prime.

It is not a weakly prime, because it can be changed into another prime (200211102222721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100105551111060 + 100105551111061.

It is an arithmetic number, because the mean of its divisors is an integer number (100105551111061).

Almost surely, 2^{200211102222121} is an apocalyptic number.

It is an amenable number.

200211102222121 is a deficient number, since it is larger than the sum of its proper divisors (1).

200211102222121 is an equidigital number, since it uses as much as digits as its factorization.

200211102222121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 200211102222121 its reverse (121222201112002), we get a palindrome (321433303334123).

The spelling of 200211102222121 in words is "two hundred trillion, two hundred eleven billion, one hundred two million, two hundred twenty-two thousand, one hundred twenty-one".