120212239361209 has 2 divisors, whose sum is σ = 120212239361210. Its totient is φ = 120212239361208.

The previous prime is 120212239361099. The next prime is 120212239361219. The reversal of 120212239361209 is 902163932212021.

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., 81761326586809 + 38450912774400 = 9042197^2 + 6200880^2 .

It is a cyclic number.

It is not a de Polignac number, because 120212239361209 - 2³³ = 120203649426617 is a prime.

It is not a weakly prime, because it can be changed into another prime (120212239361219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60106119680604 + 60106119680605.

It is an arithmetic number, because the mean of its divisors is an integer number (60106119680605).

Almost surely, 2^{120212239361209} is an apocalyptic number.

It is an amenable number.

120212239361209 is a deficient number, since it is larger than the sum of its proper divisors (1).

120212239361209 is an equidigital number, since it uses as much as digits as its factorization.

120212239361209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 120212239361209 in words is "one hundred twenty trillion, two hundred twelve billion, two hundred thirty-nine million, three hundred sixty-one thousand, two hundred nine".