11121102001020 has 96 divisors (see below), whose sum is σ = 33976029185280. Its totient is φ = 2695539202560.

The previous prime is 11121102001019. The next prime is 11121102001027. The reversal of 11121102001020 is 2010020112111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11121102000987 and 11121102001005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121102001027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2157096 + ... + 5186064.

It is an arithmetic number, because the mean of its divisors is an integer number (353916970680).

Almost surely, 2^{11121102001020} is an apocalyptic number.

11121102001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121102001020 is an abundant number, since it is smaller than the sum of its proper divisors (22854927184260).

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

11121102001020 is a wasteful number, since it uses less digits than its factorization.

11121102001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3034555 (or 3034553 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11121102001020 its reverse (2010020112111), we get a palindrome (13131122113131).

The spelling of 11121102001020 in words is "eleven trillion, one hundred twenty-one billion, one hundred two million, one thousand, twenty".