122246221 has 2 divisors, whose sum is σ = 122246222. Its totient is φ = 122246220.

The previous prime is 122246213. The next prime is 122246227. The reversal of 122246221 is 122642221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117961321 + 4284900 = 10861^2 + 2070^2 .

It is a cyclic number.

It is not a de Polignac number, because 122246221 - 2³ = 122246213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122246192 and 122246201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122246227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61123110 + 61123111.

It is an arithmetic number, because the mean of its divisors is an integer number (61123111).

Almost surely, 2^122246221 is an apocalyptic number.

It is an amenable number.

122246221 is a deficient number, since it is larger than the sum of its proper divisors (1).

122246221 is an equidigital number, since it uses as much as digits as its factorization.

122246221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768, while the sum is 22.

The square root of 122246221 is about 11056.5013001401. The cubic root of 122246221 is about 496.3009969016.

Adding to 122246221 its reverse (122642221), we get a palindrome (244888442).

The spelling of 122246221 in words is "one hundred twenty-two million, two hundred forty-six thousand, two hundred twenty-one".