122220211210211 has 2 divisors, whose sum is σ = 122220211210212. Its totient is φ = 122220211210210.

The previous prime is 122220211210169. The next prime is 122220211210241. The reversal of 122220211210211 is 112012112022221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122220211210211 - 2⁶ = 122220211210147 is a prime.

It is not a weakly prime, because it can be changed into another prime (122220211210241) 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, 61110105605105 + 61110105605106.

It is an arithmetic number, because the mean of its divisors is an integer number (61110105605106).

Almost surely, 2^{122220211210211} is an apocalyptic number.

122220211210211 is a deficient number, since it is larger than the sum of its proper divisors (1).

122220211210211 is an equidigital number, since it uses as much as digits as its factorization.

122220211210211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 122220211210211 its reverse (112012112022221), we get a palindrome (234232323232432).

The spelling of 122220211210211 in words is "one hundred twenty-two trillion, two hundred twenty billion, two hundred eleven million, two hundred ten thousand, two hundred eleven".