122442020221 has 2 divisors, whose sum is σ = 122442020222. Its totient is φ = 122442020220.

The previous prime is 122442020179. The next prime is 122442020227. The reversal of 122442020221 is 122020244221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99698062500 + 22743957721 = 315750^2 + 150811^2 .

It is a cyclic number.

It is not a de Polignac number, because 122442020221 - 2¹⁹ = 122441495933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122442020192 and 122442020201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122442020227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61221010110 + 61221010111.

It is an arithmetic number, because the mean of its divisors is an integer number (61221010111).

Almost surely, 2^122442020221 is an apocalyptic number.

It is an amenable number.

122442020221 is a deficient number, since it is larger than the sum of its proper divisors (1).

122442020221 is an equidigital number, since it uses as much as digits as its factorization.

122442020221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 122442020221 its reverse (122020244221), we get a palindrome (244462264442).

The spelling of 122442020221 in words is "one hundred twenty-two billion, four hundred forty-two million, twenty thousand, two hundred twenty-one".