122001202220221 has 2 divisors, whose sum is σ = 122001202220222. Its totient is φ = 122001202220220.

The previous prime is 122001202220159. The next prime is 122001202220231. The reversal of 122001202220221 is 122022202100221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105766024316121 + 16235177904100 = 10284261^2 + 4029290^2 .

It is an emirp because it is prime and its reverse (122022202100221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122001202220221 - 2²⁷ = 122001068002493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122001202220231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61000601110110 + 61000601110111.

It is an arithmetic number, because the mean of its divisors is an integer number (61000601110111).

Almost surely, 2^{122001202220221} is an apocalyptic number.

It is an amenable number.

122001202220221 is a deficient number, since it is larger than the sum of its proper divisors (1).

122001202220221 is an equidigital number, since it uses as much as digits as its factorization.

122001202220221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 122001202220221 its reverse (122022202100221), we get a palindrome (244023404320442).

The spelling of 122001202220221 in words is "one hundred twenty-two trillion, one billion, two hundred two million, two hundred twenty thousand, two hundred twenty-one".