11021120211 has 4 divisors (see below), whose sum is σ = 14694826952. Its totient is φ = 7347413472.

The previous prime is 11021120207. The next prime is 11021120249. The reversal of 11021120211 is 11202112011.

11021120211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11021120211 - 2² = 11021120207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11021120711) 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 in 3 ways as a sum of consecutive naturals, for example, 1836853366 + ... + 1836853371.

It is an arithmetic number, because the mean of its divisors is an integer number (3673706738).

Almost surely, 2^11021120211 is an apocalyptic number.

11021120211 is a deficient number, since it is larger than the sum of its proper divisors (3673706741).

11021120211 is an equidigital number, since it uses as much as digits as its factorization.

11021120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3673706740.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11021120211 its reverse (11202112011), we get a palindrome (22223232222).

The spelling of 11021120211 in words is "eleven billion, twenty-one million, one hundred twenty thousand, two hundred eleven".