422217212 has 12 divisors (see below), whose sum is σ = 758850120. Its totient is φ = 205402896.

The previous prime is 422217209. The next prime is 422217223. The reversal of 422217212 is 212712224.

It is a congruent number.

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, 1426262 + ... + 1426557.

It is an arithmetic number, because the mean of its divisors is an integer number (63237510).

Almost surely, 2^422217212 is an apocalyptic number.

It is an amenable number.

422217212 is a deficient number, since it is larger than the sum of its proper divisors (336632908).

422217212 is a wasteful number, since it uses less digits than its factorization.

422217212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2852860 (or 2852858 counting only the distinct ones).

The product of its digits is 896, while the sum is 23.

The square root of 422217212 is about 20547.9247613962. The cubic root of 422217212 is about 750.2027374880.

Adding to 422217212 its reverse (212712224), we get a palindrome (634929436).

The spelling of 422217212 in words is "four hundred twenty-two million, two hundred seventeen thousand, two hundred twelve".