12120650984 has 64 divisors (see below), whose sum is σ = 25170445440. Its totient is φ = 5437036800.

The previous prime is 12120650933. The next prime is 12120650987. The reversal of 12120650984 is 48905602121.

12120650984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12120650987) 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 15 ways as a sum of consecutive naturals, for example, 579509 + ... + 600059.

It is an arithmetic number, because the mean of its divisors is an integer number (393288210).

Almost surely, 2^12120650984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12120650984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12585222720).

12120650984 is an abundant number, since it is smaller than the sum of its proper divisors (13049794456).

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

12120650984 is a wasteful number, since it uses less digits than its factorization.

12120650984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20730 (or 20726 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 12120650984 in words is "twelve billion, one hundred twenty million, six hundred fifty thousand, nine hundred eighty-four".