212223244 has 6 divisors (see below), whose sum is σ = 371390684. Its totient is φ = 106111620.

The previous prime is 212223227. The next prime is 212223269. The reversal of 212223244 is 442322212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26527902 + ... + 26527909.

Almost surely, 2^212223244 is an apocalyptic number.

It is an amenable number.

212223244 is a deficient number, since it is larger than the sum of its proper divisors (159167440).

212223244 is a wasteful number, since it uses less digits than its factorization.

212223244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53055815 (or 53055813 counting only the distinct ones).

The product of its digits is 1536, while the sum is 22.

The square root of 212223244 is about 14567.8839918500. The cubic root of 212223244 is about 596.4824217426.

Adding to 212223244 its reverse (442322212), we get a palindrome (654545456).

The spelling of 212223244 in words is "two hundred twelve million, two hundred twenty-three thousand, two hundred forty-four".