422081281 has 2 divisors, whose sum is σ = 422081282. Its totient is φ = 422081280.

The previous prime is 422081267. The next prime is 422081293. The reversal of 422081281 is 182180224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 276058225 + 146023056 = 16615^2 + 12084^2 .

It is a cyclic number.

It is not a de Polignac number, because 422081281 - 2¹⁷ = 421950209 is a prime.

It is a super-2 number, since 2×422081281² = 356305215541201922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (422081251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211040640 + 211040641.

It is an arithmetic number, because the mean of its divisors is an integer number (211040641).

Almost surely, 2^422081281 is an apocalyptic number.

It is an amenable number.

422081281 is a deficient number, since it is larger than the sum of its proper divisors (1).

422081281 is an equidigital number, since it uses as much as digits as its factorization.

422081281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 422081281 is about 20544.6168375076. The cubic root of 422081281 is about 750.1222206743.

The spelling of 422081281 in words is "four hundred twenty-two million, eighty-one thousand, two hundred eighty-one".