200211011021951 has 2 divisors, whose sum is σ = 200211011021952. Its totient is φ = 200211011021950.

The previous prime is 200211011021921. The next prime is 200211011022083. The reversal of 200211011021951 is 159120110112002.

200211011021951 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200211011021951 - 2³⁸ = 199936133115007 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 200211011021951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200211011021921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100105505510975 + 100105505510976.

It is an arithmetic number, because the mean of its divisors is an integer number (100105505510976).

Almost surely, 2^{200211011021951} is an apocalyptic number.

200211011021951 is a deficient number, since it is larger than the sum of its proper divisors (1).

200211011021951 is an equidigital number, since it uses as much as digits as its factorization.

200211011021951 is an evil number, because the sum of its binary digits is even.

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

Adding to 200211011021951 its reverse (159120110112002), we get a palindrome (359331121133953).

The spelling of 200211011021951 in words is "two hundred trillion, two hundred eleven billion, eleven million, twenty-one thousand, nine hundred fifty-one".