212203244 has 24 divisors (see below), whose sum is σ = 422731008. Its totient is φ = 92261840.

The previous prime is 212203223. The next prime is 212203253. The reversal of 212203244 is 442302212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103832 + ... + 105855.

It is an arithmetic number, because the mean of its divisors is an integer number (17613792).

Almost surely, 2^212203244 is an apocalyptic number.

It is an amenable number.

212203244 is a deficient number, since it is larger than the sum of its proper divisors (210527764).

212203244 is a wasteful number, since it uses less digits than its factorization.

212203244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209725 (or 209723 counting only the distinct ones).

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

The square root of 212203244 is about 14567.1975341862. The cubic root of 212203244 is about 596.4636835765.

Adding to 212203244 its reverse (442302212), we get a palindrome (654505456).

The spelling of 212203244 in words is "two hundred twelve million, two hundred three thousand, two hundred forty-four".