11201221122 has 128 divisors (see below), whose sum is σ = 29549850624. Its totient is φ = 2749241088.

The previous prime is 11201221081. The next prime is 11201221133. The reversal of 11201221122 is 22112210211.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 452593 + ... + 476699.

It is an arithmetic number, because the mean of its divisors is an integer number (230858208).

Almost surely, 2^11201221122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11201221122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14774925312).

11201221122 is an abundant number, since it is smaller than the sum of its proper divisors (18348629502).

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

11201221122 is a wasteful number, since it uses less digits than its factorization.

11201221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24192.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11201221122 its reverse (22112210211), we get a palindrome (33313431333).

The spelling of 11201221122 in words is "eleven billion, two hundred one million, two hundred twenty-one thousand, one hundred twenty-two".