11121012120 has 64 divisors (see below), whose sum is σ = 33403104000. Its totient is φ = 2962041728.

The previous prime is 11121012109. The next prime is 11121012157. The reversal of 11121012120 is 2121012111.

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 = 11121012096 and 11121012105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45451 + ... + 155909.

It is an arithmetic number, because the mean of its divisors is an integer number (521923500).

Almost surely, 2^11121012120 is an apocalyptic number.

11121012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121012120 is an abundant number, since it is smaller than the sum of its proper divisors (22282091880).

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

11121012120 is a wasteful number, since it uses less digits than its factorization.

11121012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111312 (or 111308 counting only the distinct ones).

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

Adding to 11121012120 its reverse (2121012111), we get a palindrome (13242024231).

Subtracting from 11121012120 its reverse (2121012111), we obtain a palindrome (9000000009).

The spelling of 11121012120 in words is "eleven billion, one hundred twenty-one million, twelve thousand, one hundred twenty".