120012110209 has 2 divisors, whose sum is σ = 120012110210. Its totient is φ = 120012110208.

The previous prime is 120012110203. The next prime is 120012110261. The reversal of 120012110209 is 902011210021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63985220209 + 56026890000 = 252953^2 + 236700^2 .

It is an emirp because it is prime and its reverse (902011210021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120012110209 - 2⁷ = 120012110081 is a prime.

It is not a weakly prime, because it can be changed into another prime (120012110203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60006055104 + 60006055105.

It is an arithmetic number, because the mean of its divisors is an integer number (60006055105).

Almost surely, 2^120012110209 is an apocalyptic number.

It is an amenable number.

120012110209 is a deficient number, since it is larger than the sum of its proper divisors (1).

120012110209 is an equidigital number, since it uses as much as digits as its factorization.

120012110209 is an evil number, because the sum of its binary digits is even.

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

The spelling of 120012110209 in words is "one hundred twenty billion, twelve million, one hundred ten thousand, two hundred nine".