12120220009 has 16 divisors (see below), whose sum is σ = 12958848000. Its totient is φ = 11310586560.

The previous prime is 12120219997. The next prime is 12120220027. The reversal of 12120220009 is 90002202121.

It is a cyclic number.

It is not a de Polignac number, because 12120220009 - 2⁵ = 12120219977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120220109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 746227 + ... + 762295.

It is an arithmetic number, because the mean of its divisors is an integer number (809928000).

Almost surely, 2^12120220009 is an apocalyptic number.

It is an amenable number.

12120220009 is a deficient number, since it is larger than the sum of its proper divisors (838627991).

12120220009 is a wasteful number, since it uses less digits than its factorization.

12120220009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16968.

The product of its (nonzero) digits is 144, while the sum is 19.

The spelling of 12120220009 in words is "twelve billion, one hundred twenty million, two hundred twenty thousand, nine".