11122231120 has 160 divisors (see below), whose sum is σ = 34720277760. Its totient is φ = 3199979520.

The previous prime is 11122231103. The next prime is 11122231123. The reversal of 11122231120 is 2113222111.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 11122231094 and 11122231103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122231123) 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 31 ways as a sum of consecutive naturals, for example, 10636 + ... + 149524.

It is an arithmetic number, because the mean of its divisors is an integer number (217001736).

Almost surely, 2^11122231120 is an apocalyptic number.

11122231120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11122231120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17360138880).

11122231120 is an abundant number, since it is smaller than the sum of its proper divisors (23598046640).

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

11122231120 is a wasteful number, since it uses less digits than its factorization.

11122231120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138933 (or 138927 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11122231120 its reverse (2113222111), we get a palindrome (13235453231).

Subtracting from 11122231120 its reverse (2113222111), we obtain a palindrome (9009009009).

It can be divided in two parts, 11122 and 231120, that added together give a palindrome (242242).

The spelling of 11122231120 in words is "eleven billion, one hundred twenty-two million, two hundred thirty-one thousand, one hundred twenty".