4224221688818 has 16 divisors (see below), whose sum is σ = 6710546805984. Its totient is φ = 1987427895360.

The previous prime is 4224221688793. The next prime is 4224221688829. The reversal of 4224221688818 is 8188861224224.

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, 13629968 + ... + 13936443.

It is an arithmetic number, because the mean of its divisors is an integer number (419409175374).

Almost surely, 2^{4224221688818} is an apocalyptic number.

4224221688818 is a deficient number, since it is larger than the sum of its proper divisors (2486325117166).

4224221688818 is a wasteful number, since it uses less digits than its factorization.

4224221688818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27570937.

The product of its digits is 6291456, while the sum is 56.

The spelling of 4224221688818 in words is "four trillion, two hundred twenty-four billion, two hundred twenty-one million, six hundred eighty-eight thousand, eight hundred eighteen".