212223224242 has 16 divisors (see below), whose sum is σ = 321801853464. Its totient is φ = 104958000000.

The previous prime is 212223224219. The next prime is 212223224251. The reversal of 212223224242 is 242422322212.

It can be written as a sum of positive squares in 4 ways, for example, as 197170633521 + 15052590721 = 444039^2 + 122689^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 212223224242.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308259 + ... + 720742.

Almost surely, 2^212223224242 is an apocalyptic number.

212223224242 is a deficient number, since it is larger than the sum of its proper divisors (109578629222).

212223224242 is a wasteful number, since it uses less digits than its factorization.

212223224242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030125.

The product of its digits is 12288, while the sum is 28.

Adding to 212223224242 its reverse (242422322212), we get a palindrome (454645546454).

The spelling of 212223224242 in words is "two hundred twelve billion, two hundred twenty-three million, two hundred twenty-four thousand, two hundred forty-two".