122220212212211 has 2 divisors, whose sum is σ = 122220212212212. Its totient is φ = 122220212212210.

The previous prime is 122220212212181. The next prime is 122220212212303. The reversal of 122220212212211 is 112212212022221.

It is a weak prime.

It is an emirp because it is prime and its reverse (112212212022221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122220212212211 - 2¹⁰ = 122220212211187 is a prime.

It is not a weakly prime, because it can be changed into another prime (122220202212211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110106106105 + 61110106106106.

It is an arithmetic number, because the mean of its divisors is an integer number (61110106106106).

Almost surely, 2^{122220212212211} is an apocalyptic number.

122220212212211 is a deficient number, since it is larger than the sum of its proper divisors (1).

122220212212211 is an equidigital number, since it uses as much as digits as its factorization.

122220212212211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 122220212212211 its reverse (112212212022221), we get a palindrome (234432424234432).

The spelling of 122220212212211 in words is "one hundred twenty-two trillion, two hundred twenty billion, two hundred twelve million, two hundred twelve thousand, two hundred eleven".