11222020211 has 4 divisors (see below), whose sum is σ = 11333129424. Its totient is φ = 11110911000.

The previous prime is 11222020193. The next prime is 11222020223. The reversal of 11222020211 is 11202022211.

11222020211 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 a cyclic number.

It is not a de Polignac number, because 11222020211 - 2¹⁰ = 11222019187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11222020291) 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, 55554455 + ... + 55554656.

It is an arithmetic number, because the mean of its divisors is an integer number (2833282356).

Almost surely, 2^11222020211 is an apocalyptic number.

11222020211 is a deficient number, since it is larger than the sum of its proper divisors (111109213).

11222020211 is a wasteful number, since it uses less digits than its factorization.

11222020211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111109212.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11222020211 its reverse (11202022211), we get a palindrome (22424042422).

It can be divided in two parts, 11 and 222020211, that added together give a palindrome (222020222).

The spelling of 11222020211 in words is "eleven billion, two hundred twenty-two million, twenty thousand, two hundred eleven".