10211111211 has 32 divisors (see below), whose sum is σ = 16397134848. Its totient is φ = 5525942400.

The previous prime is 10211111191. The next prime is 10211111227. The reversal of 10211111211 is 11211111201.

It is not a de Polignac number, because 10211111211 - 2⁹ = 10211110699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10211111011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55876 + ... + 153441.

It is an arithmetic number, because the mean of its divisors is an integer number (512410464).

Almost surely, 2^10211111211 is an apocalyptic number.

10211111211 is a deficient number, since it is larger than the sum of its proper divisors (6186023637).

10211111211 is a wasteful number, since it uses less digits than its factorization.

10211111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209451.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 10211111211 its reverse (11211111201), we get a palindrome (21422222412).

The spelling of 10211111211 in words is "ten billion, two hundred eleven million, one hundred eleven thousand, two hundred eleven".