122223411221 has 2 divisors, whose sum is σ = 122223411222. Its totient is φ = 122223411220.

The previous prime is 122223411161. The next prime is 122223411229. The reversal of 122223411221 is 122114322221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90222136900 + 32001274321 = 300370^2 + 178889^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122223411221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122223411229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61111705610 + 61111705611.

It is an arithmetic number, because the mean of its divisors is an integer number (61111705611).

Almost surely, 2^122223411221 is an apocalyptic number.

It is an amenable number.

122223411221 is a deficient number, since it is larger than the sum of its proper divisors (1).

122223411221 is an equidigital number, since it uses as much as digits as its factorization.

122223411221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768, while the sum is 23.

Adding to 122223411221 its reverse (122114322221), we get a palindrome (244337733442).

The spelling of 122223411221 in words is "one hundred twenty-two billion, two hundred twenty-three million, four hundred eleven thousand, two hundred twenty-one".