12120011120 has 80 divisors (see below), whose sum is σ = 32220408000. Its totient is φ = 4153393152.

The previous prime is 12120011117. The next prime is 12120011143. The reversal of 12120011120 is 2111002121.

It is a tau number, because it is divible by the number of its divisors (80).

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, 1535504 + ... + 1543376.

It is an arithmetic number, because the mean of its divisors is an integer number (402755100).

Almost surely, 2^12120011120 is an apocalyptic number.

12120011120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120011120 is an abundant number, since it is smaller than the sum of its proper divisors (20100396880).

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

12120011120 is a wasteful number, since it uses less digits than its factorization.

12120011120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10642 (or 10636 counting only the distinct ones).

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

Adding to 12120011120 its reverse (2111002121), we get a palindrome (14231013241).

It can be divided in two parts, 1212001 and 1120, that added together give a palindrome (1213121).

The spelling of 12120011120 in words is "twelve billion, one hundred twenty million, eleven thousand, one hundred twenty".