122220112211 has 2 divisors, whose sum is σ = 122220112212. Its totient is φ = 122220112210.

The previous prime is 122220112207. The next prime is 122220112219. The reversal of 122220112211 is 112211022221.

It is a weak prime.

It is an emirp because it is prime and its reverse (112211022221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122220112211 - 2² = 122220112207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122220112211.

It is not a weakly prime, because it can be changed into another prime (122220112219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110056105 + 61110056106.

It is an arithmetic number, because the mean of its divisors is an integer number (61110056106).

Almost surely, 2^122220112211 is an apocalyptic number.

122220112211 is a deficient number, since it is larger than the sum of its proper divisors (1).

122220112211 is an equidigital number, since it uses as much as digits as its factorization.

122220112211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122220112211 its reverse (112211022221), we get a palindrome (234431134432).

The spelling of 122220112211 in words is "one hundred twenty-two billion, two hundred twenty million, one hundred twelve thousand, two hundred eleven".