422331212 has 6 divisors (see below), whose sum is σ = 739079628. Its totient is φ = 211165604.

The previous prime is 422331211. The next prime is 422331227. The reversal of 422331212 is 212133224.

It is not an unprimeable number, because it can be changed into a prime (422331211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52791398 + ... + 52791405.

It is an arithmetic number, because the mean of its divisors is an integer number (123179938).

Almost surely, 2^422331212 is an apocalyptic number.

It is an amenable number.

422331212 is a deficient number, since it is larger than the sum of its proper divisors (316748416).

422331212 is a wasteful number, since it uses less digits than its factorization.

422331212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105582807 (or 105582805 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 422331212 is about 20550.6985769341. The cubic root of 422331212 is about 750.2702504597.

Adding to 422331212 its reverse (212133224), we get a palindrome (634464436).

The spelling of 422331212 in words is "four hundred twenty-two million, three hundred thirty-one thousand, two hundred twelve".