720016222 has 8 divisors (see below), whose sum is σ = 1085620896. Its totient is φ = 358142592.

The previous prime is 720016207. The next prime is 720016259. The reversal of 720016222 is 222610027.

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 = 720016193 and 720016202.

It is a congruent number.

It is an unprimeable number.

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, 932278 + ... + 933049.

It is an arithmetic number, because the mean of its divisors is an integer number (135702612).

Almost surely, 2^720016222 is an apocalyptic number.

720016222 is a deficient number, since it is larger than the sum of its proper divisors (365604674).

720016222 is a wasteful number, since it uses less digits than its factorization.

720016222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1865522.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 720016222 is about 26833.1180074176. The cubic root of 720016222 is about 896.2876804968.

Adding to 720016222 its reverse (222610027), we get a palindrome (942626249).

The spelling of 720016222 in words is "seven hundred twenty million, sixteen thousand, two hundred twenty-two".