660224222 has 8 divisors (see below), whose sum is σ = 1131812976. Its totient is φ = 282953232.

The previous prime is 660224221. The next prime is 660224239. The reversal of 660224222 is 222422066.

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

It is a junction number, because it is equal to n+sod(n) for n = 660224191 and 660224200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660224221) 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 3 ways as a sum of consecutive naturals, for example, 23579423 + ... + 23579450.

It is an arithmetic number, because the mean of its divisors is an integer number (141476622).

Almost surely, 2^660224222 is an apocalyptic number.

660224222 is a deficient number, since it is larger than the sum of its proper divisors (471588754).

660224222 is a wasteful number, since it uses less digits than its factorization.

660224222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47158882.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 660224222 is about 25694.8287015111. The cubic root of 660224222 is about 870.7573543432.

Adding to 660224222 its reverse (222422066), we get a palindrome (882646288).

The spelling of 660224222 in words is "six hundred sixty million, two hundred twenty-four thousand, two hundred twenty-two".