422401171 has 2 divisors, whose sum is σ = 422401172. Its totient is φ = 422401170.

The previous prime is 422401163. The next prime is 422401183. The reversal of 422401171 is 171104224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422401171 - 2³ = 422401163 is a prime.

It is not a weakly prime, because it can be changed into another prime (422407171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211200585 + 211200586.

It is an arithmetic number, because the mean of its divisors is an integer number (211200586).

Almost surely, 2^422401171 is an apocalyptic number.

422401171 is a deficient number, since it is larger than the sum of its proper divisors (1).

422401171 is an equidigital number, since it uses as much as digits as its factorization.

422401171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 422401171 is about 20552.4006140402. The cubic root of 422401171 is about 750.3116754969.

Adding to 422401171 its reverse (171104224), we get a palindrome (593505395).

The spelling of 422401171 in words is "four hundred twenty-two million, four hundred one thousand, one hundred seventy-one".