200011021211951 has 2 divisors, whose sum is σ = 200011021211952. Its totient is φ = 200011021211950.

The previous prime is 200011021211899. The next prime is 200011021212047. The reversal of 200011021211951 is 159112120110002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200011021211951 - 2³⁴ = 199993841342767 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200011021211951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200011021291951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100005510605975 + 100005510605976.

It is an arithmetic number, because the mean of its divisors is an integer number (100005510605976).

Almost surely, 2^{200011021211951} is an apocalyptic number.

200011021211951 is a deficient number, since it is larger than the sum of its proper divisors (1).

200011021211951 is an equidigital number, since it uses as much as digits as its factorization.

200011021211951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 26.

Adding to 200011021211951 its reverse (159112120110002), we get a palindrome (359123141321953).

The spelling of 200011021211951 in words is "two hundred trillion, eleven billion, twenty-one million, two hundred eleven thousand, nine hundred fifty-one".