10500111211 has 2 divisors, whose sum is σ = 10500111212. Its totient is φ = 10500111210.

The previous prime is 10500111157. The next prime is 10500111247. The reversal of 10500111211 is 11211100501.

It is a strong prime.

It is an emirp because it is prime and its reverse (11211100501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10500111211 - 2²⁹ = 9963240299 is a prime.

It is a super-2 number, since 2×10500111211² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10500111191 and 10500111200.

It is not a weakly prime, because it can be changed into another prime (10506111211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5250055605 + 5250055606.

It is an arithmetic number, because the mean of its divisors is an integer number (5250055606).

Almost surely, 2^10500111211 is an apocalyptic number.

10500111211 is a deficient number, since it is larger than the sum of its proper divisors (1).

10500111211 is an equidigital number, since it uses as much as digits as its factorization.

10500111211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10, while the sum is 13.

Adding to 10500111211 its reverse (11211100501), we get a palindrome (21711211712).

The spelling of 10500111211 in words is "ten billion, five hundred million, one hundred eleven thousand, two hundred eleven".