11121122110020 has 48 divisors (see below), whose sum is σ = 33534460518720. Its totient is φ = 2737506980736.

The previous prime is 11121122110013. The next prime is 11121122110037. The reversal of 11121122110020 is 2001122112111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7128923650 + ... + 7128925209.

It is an arithmetic number, because the mean of its divisors is an integer number (698634594140).

Almost surely, 2^{11121122110020} is an apocalyptic number.

11121122110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121122110020 is an abundant number, since it is smaller than the sum of its proper divisors (22413338408700).

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

11121122110020 is a wasteful number, since it uses less digits than its factorization.

11121122110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14257848884 (or 14257848882 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11121122110020 its reverse (2001122112111), we get a palindrome (13122244222131).

The spelling of 11121122110020 in words is "eleven trillion, one hundred twenty-one billion, one hundred twenty-two million, one hundred ten thousand, twenty".