11011220133020 has 24 divisors (see below), whose sum is σ = 23124144523200. Its totient is φ = 4404377149632.

The previous prime is 11011220133013. The next prime is 11011220133059. The reversal of 11011220133020 is 2033102211011.

It is a self number, because there is not a number n which added to its sum of digits gives 11011220133020.

It is a congruent number.

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, 6114980 + ... + 7708139.

It is an arithmetic number, because the mean of its divisors is an integer number (963506021800).

Almost surely, 2^{11011220133020} is an apocalyptic number.

11011220133020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011220133020 is an abundant number, since it is smaller than the sum of its proper divisors (12112924390180).

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

11011220133020 is a wasteful number, since it uses less digits than its factorization.

11011220133020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13862957 (or 13862955 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11011220133020 its reverse (2033102211011), we get a palindrome (13044322344031).

The spelling of 11011220133020 in words is "eleven trillion, eleven billion, two hundred twenty million, one hundred thirty-three thousand, twenty".