11121200120 has 32 divisors (see below), whose sum is σ = 26110645920. Its totient is φ = 4255067520.

The previous prime is 11121200093. The next prime is 11121200159. The reversal of 11121200120 is 2100212111.

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, 6043211 + ... + 6045050.

It is an arithmetic number, because the mean of its divisors is an integer number (815957685).

Almost surely, 2^11121200120 is an apocalyptic number.

11121200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121200120 is an abundant number, since it is smaller than the sum of its proper divisors (14989445800).

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

11121200120 is a wasteful number, since it uses less digits than its factorization.

11121200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12088295 (or 12088291 counting only the distinct ones).

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

Adding to 11121200120 its reverse (2100212111), we get a palindrome (13221412231).

The spelling of 11121200120 in words is "eleven billion, one hundred twenty-one million, two hundred thousand, one hundred twenty".