11121122012120 has 64 divisors (see below), whose sum is σ = 25079881780800. Its totient is φ = 4438254343680.

The previous prime is 11121122011963. The next prime is 11121122012137. The reversal of 11121122012120 is 2121022112111.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 171810002 + ... + 171874718.

It is an arithmetic number, because the mean of its divisors is an integer number (391873152825).

Almost surely, 2^{11121122012120} is an apocalyptic number.

11121122012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121122012120 is an abundant number, since it is smaller than the sum of its proper divisors (13958759768680).

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

11121122012120 is a wasteful number, since it uses less digits than its factorization.

11121122012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74508 (or 74504 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11121122012120 its reverse (2121022112111), we get a palindrome (13242144124231).

Subtracting from 11121122012120 its reverse (2121022112111), we obtain a palindrome (9000099900009).

The spelling of 11121122012120 in words is "eleven trillion, one hundred twenty-one billion, one hundred twenty-two million, twelve thousand, one hundred twenty".