11021020211 has 32 divisors (see below), whose sum is σ = 11840532480. Its totient is φ = 10240473600.

The previous prime is 11021020201. The next prime is 11021020229. The reversal of 11021020211 is 11202012011.

11021020211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11021020211 - 2²⁶ = 10953911347 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11021020192 and 11021020201.

It is not an unprimeable number, because it can be changed into a prime (11021020201) 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 31 ways as a sum of consecutive naturals, for example, 29079020 + ... + 29079398.

It is an arithmetic number, because the mean of its divisors is an integer number (370016640).

Almost surely, 2^11021020211 is an apocalyptic number.

11021020211 is a deficient number, since it is larger than the sum of its proper divisors (819512269).

11021020211 is a wasteful number, since it uses less digits than its factorization.

11021020211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11021020211 its reverse (11202012011), we get a palindrome (22223032222).

The spelling of 11021020211 in words is "eleven billion, twenty-one million, twenty thousand, two hundred eleven".