12103220120 has 16 divisors (see below), whose sum is σ = 27232245360. Its totient is φ = 4841288032.

The previous prime is 12103220117. The next prime is 12103220123. The reversal of 12103220120 is 2102230121.

It is a happy number.

12103220120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12103220117) and next prime (12103220123).

It is a junction number, because it is equal to n+sod(n) for n = 12103220095 and 12103220104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103220123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151290212 + ... + 151290291.

It is an arithmetic number, because the mean of its divisors is an integer number (1702015335).

Almost surely, 2^12103220120 is an apocalyptic number.

12103220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12103220120 is an abundant number, since it is smaller than the sum of its proper divisors (15129025240).

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

12103220120 is a wasteful number, since it uses less digits than its factorization.

12103220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302580514 (or 302580510 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12103220120 its reverse (2102230121), we get a palindrome (14205450241).

The spelling of 12103220120 in words is "twelve billion, one hundred three million, two hundred twenty thousand, one hundred twenty".