120101210209 has 2 divisors, whose sum is σ = 120101210210. Its totient is φ = 120101210208.

The previous prime is 120101210179. The next prime is 120101210221. The reversal of 120101210209 is 902012101021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97155019809 + 22946190400 = 311697^2 + 151480^2 .

It is a cyclic number.

It is not a de Polignac number, because 120101210209 - 2⁷ = 120101210081 is a prime.

It is not a weakly prime, because it can be changed into another prime (120101210249) 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 as a sum of consecutive naturals, namely, 60050605104 + 60050605105.

It is an arithmetic number, because the mean of its divisors is an integer number (60050605105).

Almost surely, 2^120101210209 is an apocalyptic number.

It is an amenable number.

120101210209 is a deficient number, since it is larger than the sum of its proper divisors (1).

120101210209 is an equidigital number, since it uses as much as digits as its factorization.

120101210209 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 120101210209 in words is "one hundred twenty billion, one hundred one million, two hundred ten thousand, two hundred nine".