12120113221110 has 48 divisors (see below), whose sum is σ = 31513689174240. Its totient is φ = 3231887136000.

The previous prime is 12120113221091. The next prime is 12120113221147. The reversal of 12120113221110 is 1112231102121.

It is a happy number.

12120113221110 is a `hidden beast` number, since 121 + 201 + 1 + 322 + 11 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 927891 + ... + 5010110.

It is an arithmetic number, because the mean of its divisors is an integer number (656535191130).

Almost surely, 2^{12120113221110} is an apocalyptic number.

12120113221110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120113221110 is an abundant number, since it is smaller than the sum of its proper divisors (19393575953130).

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

12120113221110 is a wasteful number, since it uses less digits than its factorization.

12120113221110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5960693 (or 5960690 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 12120113221110 its reverse (1112231102121), we get a palindrome (13232344323231).

The spelling of 12120113221110 in words is "twelve trillion, one hundred twenty billion, one hundred thirteen million, two hundred twenty-one thousand, one hundred ten".