122223323221 has 2 divisors, whose sum is σ = 122223323222. Its totient is φ = 122223323220.

The previous prime is 122223323219. The next prime is 122223323231. The reversal of 122223323221 is 122323322221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89095683121 + 33127640100 = 298489^2 + 182010^2 .

It is a cyclic number.

It is not a de Polignac number, because 122223323221 - 2¹ = 122223323219 is a prime.

Together with 122223323219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122223323231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61111661610 + 61111661611.

It is an arithmetic number, because the mean of its divisors is an integer number (61111661611).

Almost surely, 2^122223323221 is an apocalyptic number.

It is an amenable number.

122223323221 is a deficient number, since it is larger than the sum of its proper divisors (1).

122223323221 is an equidigital number, since it uses as much as digits as its factorization.

122223323221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 25.

Adding to 122223323221 its reverse (122323322221), we get a palindrome (244546645442).

The spelling of 122223323221 in words is "one hundred twenty-two billion, two hundred twenty-three million, three hundred twenty-three thousand, two hundred twenty-one".