422404204181 has 2 divisors, whose sum is σ = 422404204182. Its totient is φ = 422404204180.

The previous prime is 422404204147. The next prime is 422404204207. The reversal of 422404204181 is 181402404224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 422305022500 + 99181681 = 649850^2 + 9959^2 .

It is a cyclic number.

It is not a de Polignac number, because 422404204181 - 2¹⁴ = 422404187797 is a prime.

It is a super-2 number, since 2×422404204181² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422404204081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211202102090 + 211202102091.

It is an arithmetic number, because the mean of its divisors is an integer number (211202102091).

Almost surely, 2^422404204181 is an apocalyptic number.

It is an amenable number.

422404204181 is a deficient number, since it is larger than the sum of its proper divisors (1).

422404204181 is an equidigital number, since it uses as much as digits as its factorization.

422404204181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16384, while the sum is 32.

The spelling of 422404204181 in words is "four hundred twenty-two billion, four hundred four million, two hundred four thousand, one hundred eighty-one".