11121033220 has 48 divisors (see below), whose sum is σ = 25894967616. Its totient is φ = 3977712000.

The previous prime is 11121033101. The next prime is 11121033229. The reversal of 11121033220 is 2233012111.

It is a junction number, because it is equal to n+sod(n) for n = 11121033194 and 11121033203.

It is not an unprimeable number, because it can be changed into a prime (11121033229) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 400926 + ... + 427765.

It is an arithmetic number, because the mean of its divisors is an integer number (539478492).

Almost surely, 2^11121033220 is an apocalyptic number.

11121033220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121033220 is an abundant number, since it is smaller than the sum of its proper divisors (14773934396).

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

11121033220 is a wasteful number, since it uses less digits than its factorization.

11121033220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828772 (or 828770 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11121033220 its reverse (2233012111), we get a palindrome (13354045331).

The spelling of 11121033220 in words is "eleven billion, one hundred twenty-one million, thirty-three thousand, two hundred twenty".