222312424 has 8 divisors (see below), whose sum is σ = 416835810. Its totient is φ = 111156208.

The previous prime is 222312401. The next prime is 222312437. The reversal of 222312424 is 424213222.

It can be written as a sum of positive squares in only one way, i.e., 179828100 + 42484324 = 13410^2 + 6518^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 222312395 and 222312404.

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 as a sum of consecutive naturals, namely, 13894519 + ... + 13894534.

Almost surely, 2^222312424 is an apocalyptic number.

It is an amenable number.

222312424 is a deficient number, since it is larger than the sum of its proper divisors (194523386).

222312424 is a wasteful number, since it uses less digits than its factorization.

222312424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27789059 (or 27789055 counting only the distinct ones).

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

The square root of 222312424 is about 14910.1450026484. The cubic root of 222312424 is about 605.7888069453.

Adding to 222312424 its reverse (424213222), we get a palindrome (646525646).

The spelling of 222312424 in words is "two hundred twenty-two million, three hundred twelve thousand, four hundred twenty-four".