200121120211 has 2 divisors, whose sum is σ = 200121120212. Its totient is φ = 200121120210.

The previous prime is 200121120181. The next prime is 200121120289. The reversal of 200121120211 is 112021121002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200121120211 - 2⁵ = 200121120179 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200121120191 and 200121120200.

It is not a weakly prime, because it can be changed into another prime (200121120011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100060560105 + 100060560106.

It is an arithmetic number, because the mean of its divisors is an integer number (100060560106).

Almost surely, 2^200121120211 is an apocalyptic number.

200121120211 is a deficient number, since it is larger than the sum of its proper divisors (1).

200121120211 is an equidigital number, since it uses as much as digits as its factorization.

200121120211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 200121120211 its reverse (112021121002), we get a palindrome (312142241213).

The spelling of 200121120211 in words is "two hundred billion, one hundred twenty-one million, one hundred twenty thousand, two hundred eleven".