11121100012120 has 64 divisors (see below), whose sum is σ = 29262163518720. Its totient is φ = 3724275348864.

The previous prime is 11121100012103. The next prime is 11121100012129. The reversal of 11121100012120 is 2121000112111.

It is a happy number.

11121100012120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 11121100012120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121100012129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461827662 + ... + 461851741.

It is an arithmetic number, because the mean of its divisors is an integer number (457221304980).

Almost surely, 2^{11121100012120} is an apocalyptic number.

11121100012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121100012120 is an abundant number, since it is smaller than the sum of its proper divisors (18141063506600).

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

11121100012120 is a wasteful number, since it uses less digits than its factorization.

11121100012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923679464 (or 923679460 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11121100012120 its reverse (2121000112111), we get a palindrome (13242100124231).

Subtracting from 11121100012120 its reverse (2121000112111), we obtain a palindrome (9000099900009).

The spelling of 11121100012120 in words is "eleven trillion, one hundred twenty-one billion, one hundred million, twelve thousand, one hundred twenty".