11242020211 has 4 divisors (see below), whose sum is σ = 11242238832. Its totient is φ = 11241801592.

The previous prime is 11242020191. The next prime is 11242020271. The reversal of 11242020211 is 11202024211.

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 11242020211 - 2¹¹ = 11242018163 is a prime.

It is a super-3 number, since 3×11242020211³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11242020271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14781 + ... + 150673.

It is an arithmetic number, because the mean of its divisors is an integer number (2810559708).

Almost surely, 2^11242020211 is an apocalyptic number.

11242020211 is a deficient number, since it is larger than the sum of its proper divisors (218621).

11242020211 is an equidigital number, since it uses as much as digits as its factorization.

11242020211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218620.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11242020211 its reverse (11202024211), we get a palindrome (22444044422).

The spelling of 11242020211 in words is "eleven billion, two hundred forty-two million, twenty thousand, two hundred eleven".