216065222 has 4 divisors (see below), whose sum is σ = 324097836. Its totient is φ = 108032610.

The previous prime is 216065209. The next prime is 216065231. The reversal of 216065222 is 222560612.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 216065191 and 216065200.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 54016304 + ... + 54016307.

It is an arithmetic number, because the mean of its divisors is an integer number (81024459).

Almost surely, 2^216065222 is an apocalyptic number.

216065222 is a deficient number, since it is larger than the sum of its proper divisors (108032614).

216065222 is a wasteful number, since it uses less digits than its factorization.

216065222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108032613.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 216065222 is about 14699.1571867233. The cubic root of 216065222 is about 600.0603846634.

The spelling of 216065222 in words is "two hundred sixteen million, sixty-five thousand, two hundred twenty-two".