120211220209 has 2 divisors, whose sum is σ = 120211220210. Its totient is φ = 120211220208.

The previous prime is 120211220149. The next prime is 120211220219. The reversal of 120211220209 is 902022112021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107452840000 + 12758380209 = 327800^2 + 112953^2 .

It is a cyclic number.

It is not a de Polignac number, because 120211220209 - 2²⁷ = 120077002481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120211220209.

It is not a weakly prime, because it can be changed into another prime (120211220219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60105610104 + 60105610105.

It is an arithmetic number, because the mean of its divisors is an integer number (60105610105).

Almost surely, 2^120211220209 is an apocalyptic number.

It is an amenable number.

120211220209 is a deficient number, since it is larger than the sum of its proper divisors (1).

120211220209 is an equidigital number, since it uses as much as digits as its factorization.

120211220209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 120211220209 in words is "one hundred twenty billion, two hundred eleven million, two hundred twenty thousand, two hundred nine".