216222022 has 8 divisors (see below), whose sum is σ = 324396072. Its totient is φ = 108090000.

The previous prime is 216222001. The next prime is 216222023. The reversal of 216222022 is 220222612.

216222022 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216222023) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 11997 + ... + 24007.

It is an arithmetic number, because the mean of its divisors is an integer number (40549509).

Almost surely, 2^216222022 is an apocalyptic number.

216222022 is a deficient number, since it is larger than the sum of its proper divisors (108174050).

216222022 is a wasteful number, since it uses less digits than its factorization.

216222022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21014.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 216222022 is about 14704.4898585432. The cubic root of 216222022 is about 600.2055055304.

Adding to 216222022 its reverse (220222612), we get a palindrome (436444634).

The spelling of 216222022 in words is "two hundred sixteen million, two hundred twenty-two thousand, twenty-two".