422722131 has 32 divisors (see below), whose sum is σ = 621918528. Its totient is φ = 253808640.

The previous prime is 422722123. The next prime is 422722163. The reversal of 422722131 is 131227224.

It is not a de Polignac number, because 422722131 - 2³ = 422722123 is a prime.

It is a super-2 number, since 2×422722131² = 357388000074362322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (422722931) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 325275 + ... + 326571.

It is an arithmetic number, because the mean of its divisors is an integer number (19434954).

Almost surely, 2^422722131 is an apocalyptic number.

422722131 is a deficient number, since it is larger than the sum of its proper divisors (199196397).

422722131 is a wasteful number, since it uses less digits than its factorization.

422722131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511.

The product of its digits is 1344, while the sum is 24.

The square root of 422722131 is about 20560.2074649066. The cubic root of 422722131 is about 750.5016679198.

Adding to 422722131 its reverse (131227224), we get a palindrome (553949355).

The spelling of 422722131 in words is "four hundred twenty-two million, seven hundred twenty-two thousand, one hundred thirty-one".