222412647 has 8 divisors (see below), whose sum is σ = 299271280. Its totient is φ = 146914560.

The previous prime is 222412639. The next prime is 222412657. The reversal of 222412647 is 746214222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222412647 - 2³ = 222412639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222412607) by changing a digit.

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, 339754 + ... + 340407.

It is an arithmetic number, because the mean of its divisors is an integer number (37408910).

Almost surely, 2^222412647 is an apocalyptic number.

222412647 is a deficient number, since it is larger than the sum of its proper divisors (76858633).

222412647 is a wasteful number, since it uses less digits than its factorization.

222412647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680273.

The product of its digits is 10752, while the sum is 30.

The square root of 222412647 is about 14913.5055235179. The cubic root of 222412647 is about 605.8798272747.

Adding to 222412647 its reverse (746214222), we get a palindrome (968626869).

The spelling of 222412647 in words is "two hundred twenty-two million, four hundred twelve thousand, six hundred forty-seven".