11033221122 has 144 divisors (see below), whose sum is σ = 30571336224. Its totient is φ = 2843568000.

The previous prime is 11033221061. The next prime is 11033221223. The reversal of 11033221122 is 22112233011.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11033221095 and 11033221104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1266622 + ... + 1275302.

It is an arithmetic number, because the mean of its divisors is an integer number (212300946).

Almost surely, 2^11033221122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11033221122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15285668112).

11033221122 is an abundant number, since it is smaller than the sum of its proper divisors (19538115102).

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

11033221122 is a wasteful number, since it uses less digits than its factorization.

11033221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8845 (or 8835 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11033221122 its reverse (22112233011), we get a palindrome (33145454133).

The spelling of 11033221122 in words is "eleven billion, thirty-three million, two hundred twenty-one thousand, one hundred twenty-two".