9851000010211 has 2 divisors, whose sum is σ = 9851000010212. Its totient is φ = 9851000010210.

The previous prime is 9851000010157. The next prime is 9851000010239. The reversal of 9851000010211 is 1120100001589.

It is an a-pointer prime, because the next prime (9851000010239) can be obtained adding 9851000010211 to its sum of digits (28).

It is a strong prime.

It is an emirp because it is prime and its reverse (1120100001589) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9851000010211 - 2²¹ = 9850997913059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9851000010211.

It is not a weakly prime, because it can be changed into another prime (9851000010251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4925500005105 + 4925500005106.

It is an arithmetic number, because the mean of its divisors is an integer number (4925500005106).

Almost surely, 2^{9851000010211} is an apocalyptic number.

9851000010211 is a deficient number, since it is larger than the sum of its proper divisors (1).

9851000010211 is an equidigital number, since it uses as much as digits as its factorization.

9851000010211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 28.

The spelling of 9851000010211 in words is "nine trillion, eight hundred fifty-one billion, ten thousand, two hundred eleven".