422211212 has 12 divisors (see below), whose sum is σ = 739090800. Its totient is φ = 211042416.

The previous prime is 422211169. The next prime is 422211241. The reversal of 422211212 is 212112224.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1289 + ... + 29087.

It is an arithmetic number, because the mean of its divisors is an integer number (61590900).

Almost surely, 2^422211212 is an apocalyptic number.

It is an amenable number.

422211212 is a deficient number, since it is larger than the sum of its proper divisors (316879588).

422211212 is a wasteful number, since it uses less digits than its factorization.

422211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31600 (or 31598 counting only the distinct ones).

The product of its digits is 128, while the sum is 17.

The square root of 422211212 is about 20547.7787607323. The cubic root of 422211212 is about 750.1991838371.

Adding to 422211212 its reverse (212112224), we get a palindrome (634323436).

The spelling of 422211212 in words is "four hundred twenty-two million, two hundred eleven thousand, two hundred twelve".