212232224 has 24 divisors (see below), whose sum is σ = 436000320. Its totient is φ = 101502016.

The previous prime is 212232211. The next prime is 212232227. The reversal of 212232224 is 422232212.

It is a junction number, because it is equal to n+sod(n) for n = 212232196 and 212232205.

It is not an unprimeable number, because it can be changed into a prime (212232227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143444 + ... + 144915.

It is an arithmetic number, because the mean of its divisors is an integer number (18166680).

Almost surely, 2^212232224 is an apocalyptic number.

It is an amenable number.

212232224 is an abundant number, since it is smaller than the sum of its proper divisors (223768096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212232224 is a wasteful number, since it uses less digits than its factorization.

212232224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288392 (or 288384 counting only the distinct ones).

The product of its digits is 768, while the sum is 20.

The square root of 212232224 is about 14568.1922008189. The cubic root of 212232224 is about 596.4908347962.

Adding to 212232224 its reverse (422232212), we get a palindrome (634464436).

The spelling of 212232224 in words is "two hundred twelve million, two hundred thirty-two thousand, two hundred twenty-four".