212043224 has 32 divisors (see below), whose sum is σ = 412093440. Its totient is φ = 102180000.

The previous prime is 212043203. The next prime is 212043239. The reversal of 212043224 is 422340212.

It is a junction number, because it is equal to n+sod(n) for n = 212043196 and 212043205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63599 + ... + 66849.

It is an arithmetic number, because the mean of its divisors is an integer number (12877920).

Almost surely, 2^212043224 is an apocalyptic number.

It is an amenable number.

212043224 is a deficient number, since it is larger than the sum of its proper divisors (200050216).

212043224 is a wasteful number, since it uses less digits than its factorization.

212043224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3551 (or 3547 counting only the distinct ones).

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

The square root of 212043224 is about 14561.7040211646. The cubic root of 212043224 is about 596.3137170970.

Adding to 212043224 its reverse (422340212), we get a palindrome (634383436).

The spelling of 212043224 in words is "two hundred twelve million, forty-three thousand, two hundred twenty-four".