120012120109 has 32 divisors (see below), whose sum is σ = 148511923200. Its totient is φ = 96605220096.

The previous prime is 120012120097. The next prime is 120012120127. The reversal of 120012120109 is 901021210021.

It is a happy number.

It is not a de Polignac number, because 120012120109 - 2³⁵ = 85652381741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120012120139) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2677527 + ... + 2721979.

It is an arithmetic number, because the mean of its divisors is an integer number (4640997600).

Almost surely, 2^120012120109 is an apocalyptic number.

It is an amenable number.

120012120109 is a deficient number, since it is larger than the sum of its proper divisors (28499803091).

120012120109 is an equidigital number, since it uses as much as digits as its factorization.

120012120109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44954 (or 44940 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 120012120109 in words is "one hundred twenty billion, twelve million, one hundred twenty thousand, one hundred nine".