10101111211 has 2 divisors, whose sum is σ = 10101111212. Its totient is φ = 10101111210.

The previous prime is 10101111203. The next prime is 10101111217. The reversal of 10101111211 is 11211110101.

10101111211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10101111211 - 2³ = 10101111203 is a prime.

It is not a weakly prime, because it can be changed into another prime (10101111217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050555605 + 5050555606.

It is an arithmetic number, because the mean of its divisors is an integer number (5050555606).

Almost surely, 2^10101111211 is an apocalyptic number.

10101111211 is a deficient number, since it is larger than the sum of its proper divisors (1).

10101111211 is an equidigital number, since it uses as much as digits as its factorization.

10101111211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 10101111211 its reverse (11211110101), we get a palindrome (21312221312).

The spelling of 10101111211 in words is "ten billion, one hundred one million, one hundred eleven thousand, two hundred eleven".