210012224 has 14 divisors (see below), whose sum is σ = 416743134. Its totient is φ = 105006080.

The previous prime is 210012223. The next prime is 210012227. The reversal of 210012224 is 422210012.

It can be written as a sum of positive squares in only one way, i.e., 180418624 + 29593600 = 13432^2 + 5440^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210012199 and 210012208.

It is not an unprimeable number, because it can be changed into a prime (210012223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1640657 + ... + 1640784.

Almost surely, 2^210012224 is an apocalyptic number.

It is an amenable number.

210012224 is a deficient number, since it is larger than the sum of its proper divisors (206730910).

210012224 is an equidigital number, since it uses as much as digits as its factorization.

210012224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3281453 (or 3281443 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 210012224 is about 14491.7985081218. The cubic root of 210012224 is about 594.4037281481.

Adding to 210012224 its reverse (422210012), we get a palindrome (632222236).

The spelling of 210012224 in words is "two hundred ten million, twelve thousand, two hundred twenty-four".