122223310021 has 2 divisors, whose sum is σ = 122223310022. Its totient is φ = 122223310020.

The previous prime is 122223310009. The next prime is 122223310031. The reversal of 122223310021 is 120013322221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67399428996 + 54823881025 = 259614^2 + 234145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122223310021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122223310031) 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, 61111655010 + 61111655011.

It is an arithmetic number, because the mean of its divisors is an integer number (61111655011).

Almost surely, 2^122223310021 is an apocalyptic number.

It is an amenable number.

122223310021 is a deficient number, since it is larger than the sum of its proper divisors (1).

122223310021 is an equidigital number, since it uses as much as digits as its factorization.

122223310021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 122223310021 its reverse (120013322221), we get a palindrome (242236632242).

The spelling of 122223310021 in words is "one hundred twenty-two billion, two hundred twenty-three million, three hundred ten thousand, twenty-one".