11100020112020 has 48 divisors (see below), whose sum is σ = 27076770392448. Its totient is φ = 3743332306560.

The previous prime is 11100020111987. The next prime is 11100020112043. The reversal of 11100020112020 is 2021102000111.

It is a junction number, because it is equal to n+sod(n) for n = 11100020111992 and 11100020112010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 649875542 + ... + 649892621.

It is an arithmetic number, because the mean of its divisors is an integer number (564099383176).

Almost surely, 2^{11100020112020} is an apocalyptic number.

11100020112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11100020112020 is an abundant number, since it is smaller than the sum of its proper divisors (15976750280428).

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

11100020112020 is a wasteful number, since it uses less digits than its factorization.

11100020112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299768240 (or 1299768238 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11100020112020 its reverse (2021102000111), we get a palindrome (13121122112131).

The spelling of 11100020112020 in words is "eleven trillion, one hundred billion, twenty million, one hundred twelve thousand, twenty".