422104121 has 2 divisors, whose sum is σ = 422104122. Its totient is φ = 422104120.

The previous prime is 422104117. The next prime is 422104157. The reversal of 422104121 is 121401224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 421891600 + 212521 = 20540^2 + 461^2 .

It is a cyclic number.

It is not a de Polignac number, because 422104121 - 2² = 422104117 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 422104121.

It is not a weakly prime, because it can be changed into another prime (422104181) 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, 211052060 + 211052061.

It is an arithmetic number, because the mean of its divisors is an integer number (211052061).

Almost surely, 2^422104121 is an apocalyptic number.

It is an amenable number.

422104121 is a deficient number, since it is larger than the sum of its proper divisors (1).

422104121 is an equidigital number, since it uses as much as digits as its factorization.

422104121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 422104121 is about 20545.1726933604. The cubic root of 422104121 is about 750.1357508349.

Adding to 422104121 its reverse (121401224), we get a palindrome (543505345).

The spelling of 422104121 in words is "four hundred twenty-two million, one hundred four thousand, one hundred twenty-one".