11013112021220 has 96 divisors (see below), whose sum is σ = 23856294099456. Its totient is φ = 4268676787200.

The previous prime is 11013112021217. The next prime is 11013112021237. The reversal of 11013112021220 is 2212021131011.

It is a happy number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 112817072 + ... + 112914648.

It is an arithmetic number, because the mean of its divisors is an integer number (248503063536).

Almost surely, 2^{11013112021220} is an apocalyptic number.

11013112021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11013112021220 is an abundant number, since it is smaller than the sum of its proper divisors (12843182078236).

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

11013112021220 is a wasteful number, since it uses less digits than its factorization.

11013112021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99021 (or 99019 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 11013112021220 its reverse (2212021131011), we get a palindrome (13225133152231).

The spelling of 11013112021220 in words is "eleven trillion, thirteen billion, one hundred twelve million, twenty-one thousand, two hundred twenty".