11201122112 has 42 divisors (see below), whose sum is σ = 23611660422. Its totient is φ = 5271107584.

The previous prime is 11201122091. The next prime is 11201122187. The reversal of 11201122112 is 21122110211.

It can be written as a sum of positive squares in 3 ways, for example, as 3134208256 + 8066913856 = 55984^2 + 89816^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 284303 + ... + 321294.

It is an arithmetic number, because the mean of its divisors is an integer number (562182391).

Almost surely, 2^11201122112 is an apocalyptic number.

It is an amenable number.

11201122112 is an abundant number, since it is smaller than the sum of its proper divisors (12410538310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11201122112 is an equidigital number, since it uses as much as digits as its factorization.

11201122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605643 (or 605616 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11201122112 its reverse (21122110211), we get a palindrome (32323232323).

The spelling of 11201122112 in words is "eleven billion, two hundred one million, one hundred twenty-two thousand, one hundred twelve".