200011102121 has 2 divisors, whose sum is σ = 200011102122. Its totient is φ = 200011102120.

The previous prime is 200011102069. The next prime is 200011102127. The reversal of 200011102121 is 121201110002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192190176025 + 7820926096 = 438395^2 + 88436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200011102121 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (200011102127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100005551060 + 100005551061.

It is an arithmetic number, because the mean of its divisors is an integer number (100005551061).

Almost surely, 2^200011102121 is an apocalyptic number.

It is an amenable number.

200011102121 is a deficient number, since it is larger than the sum of its proper divisors (1).

200011102121 is an equidigital number, since it uses as much as digits as its factorization.

200011102121 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 11.

Adding to 200011102121 its reverse (121201110002), we get a palindrome (321212212123).

The spelling of 200011102121 in words is "two hundred billion, eleven million, one hundred two thousand, one hundred twenty-one".