11111201120120 has 32 divisors (see below), whose sum is σ = 25001179912800. Its totient is φ = 4444306689408.

The previous prime is 11111201120111. The next prime is 11111201120141. The reversal of 11111201120120 is 2102110211111.

It is a junction number, because it is equal to n+sod(n) for n = 11111201120095 and 11111201120104.

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, 4391579 + ... + 6442698.

It is an arithmetic number, because the mean of its divisors is an integer number (781286872275).

Almost surely, 2^{11111201120120} is an apocalyptic number.

11111201120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111201120120 is an abundant number, since it is smaller than the sum of its proper divisors (13889978792680).

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

11111201120120 is a wasteful number, since it uses less digits than its factorization.

11111201120120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10859927 (or 10859923 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11111201120120 its reverse (2102110211111), we get a palindrome (13213311331231).

Subtracting from 11111201120120 its reverse (2102110211111), we obtain a palindrome (9009090909009).

The spelling of 11111201120120 in words is "eleven trillion, one hundred eleven billion, two hundred one million, one hundred twenty thousand, one hundred twenty".