11201122011 has 8 divisors (see below), whose sum is σ = 15179662864. Its totient is φ = 7344997920.

The previous prime is 11201122001. The next prime is 11201122021. The reversal of 11201122011 is 11022110211.

It is an interprime number because it is at equal distance from previous prime (11201122001) and next prime (11201122021).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11201122011 - 2⁵ = 11201121979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11201122001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30603976 + ... + 30604341.

It is an arithmetic number, because the mean of its divisors is an integer number (1897457858).

Almost surely, 2^11201122011 is an apocalyptic number.

11201122011 is a deficient number, since it is larger than the sum of its proper divisors (3978540853).

11201122011 is an equidigital number, since it uses as much as digits as its factorization.

11201122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61208381.

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

Adding to 11201122011 its reverse (11022110211), we get a palindrome (22223232222).

The spelling of 11201122011 in words is "eleven billion, two hundred one million, one hundred twenty-two thousand, eleven".