12120001121120 has 48 divisors (see below), whose sum is σ = 28633738684320. Its totient is φ = 4847960484864.

The previous prime is 12120001121117. The next prime is 12120001121143. The reversal of 12120001121120 is 2112110002121.

It is a junction number, because it is equal to n+sod(n) for n = 12120001121095 and 12120001121104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26139629 + ... + 26599251.

It is an arithmetic number, because the mean of its divisors is an integer number (596536222590).

Almost surely, 2^{12120001121120} is an apocalyptic number.

12120001121120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120001121120 is an abundant number, since it is smaller than the sum of its proper divisors (16513737563200).

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

12120001121120 is a wasteful number, since it uses less digits than its factorization.

12120001121120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624447 (or 624439 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12120001121120 its reverse (2112110002121), we get a palindrome (14232111123241).

The spelling of 12120001121120 in words is "twelve trillion, one hundred twenty billion, one million, one hundred twenty-one thousand, one hundred twenty".