422142271 has 2 divisors, whose sum is σ = 422142272. Its totient is φ = 422142270.

The previous prime is 422142263. The next prime is 422142293. The reversal of 422142271 is 172241224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422142271 - 2³ = 422142263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422142211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211071135 + 211071136.

It is an arithmetic number, because the mean of its divisors is an integer number (211071136).

Almost surely, 2^422142271 is an apocalyptic number.

422142271 is a deficient number, since it is larger than the sum of its proper divisors (1).

422142271 is an equidigital number, since it uses as much as digits as its factorization.

422142271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1792, while the sum is 25.

The square root of 422142271 is about 20546.1011143234. The cubic root of 422142271 is about 750.1583493798.

Adding to 422142271 its reverse (172241224), we get a palindrome (594383495).

The spelling of 422142271 in words is "four hundred twenty-two million, one hundred forty-two thousand, two hundred seventy-one".