122120201121209 has 2 divisors, whose sum is σ = 122120201121210. Its totient is φ = 122120201121208.

The previous prime is 122120201121197. The next prime is 122120201121253. The reversal of 122120201121209 is 902121102021221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107243173565584 + 14877027555625 = 10355828^2 + 3857075^2 .

It is a cyclic number.

It is not a de Polignac number, because 122120201121209 - 2¹² = 122120201117113 is a prime.

It is not a weakly prime, because it can be changed into another prime (122120201121109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61060100560604 + 61060100560605.

It is an arithmetic number, because the mean of its divisors is an integer number (61060100560605).

Almost surely, 2^{122120201121209} is an apocalyptic number.

It is an amenable number.

122120201121209 is a deficient number, since it is larger than the sum of its proper divisors (1).

122120201121209 is an equidigital number, since it uses as much as digits as its factorization.

122120201121209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 122120201121209 in words is "one hundred twenty-two trillion, one hundred twenty billion, two hundred one million, one hundred twenty-one thousand, two hundred nine".