11100133220 has 24 divisors (see below), whose sum is σ = 25429396608. Its totient is φ = 4036412000.

The previous prime is 11100133199. The next prime is 11100133259. The reversal of 11100133220 is 2233100111.

It is a junction number, because it is equal to n+sod(n) for n = 11100133195 and 11100133204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25227356 + ... + 25227795.

It is an arithmetic number, because the mean of its divisors is an integer number (1059558192).

Almost surely, 2^11100133220 is an apocalyptic number.

11100133220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11100133220 is an abundant number, since it is smaller than the sum of its proper divisors (14329263388).

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

11100133220 is a wasteful number, since it uses less digits than its factorization.

11100133220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50455171 (or 50455169 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 11100133220 its reverse (2233100111), we get a palindrome (13333233331).

The spelling of 11100133220 in words is "eleven billion, one hundred million, one hundred thirty-three thousand, two hundred twenty".