216362222 has 4 divisors (see below), whose sum is σ = 324543336. Its totient is φ = 108181110.

The previous prime is 216362191. The next prime is 216362261. The reversal of 216362222 is 222263612.

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

It is a super-2 number, since 2×216362222² = 93625222217554568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 216362191 and 216362200.

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 as a sum of consecutive naturals, namely, 54090554 + ... + 54090557.

It is an arithmetic number, because the mean of its divisors is an integer number (81135834).

Almost surely, 2^216362222 is an apocalyptic number.

216362222 is a deficient number, since it is larger than the sum of its proper divisors (108181114).

216362222 is a wasteful number, since it uses less digits than its factorization.

216362222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108181113.

The product of its digits is 3456, while the sum is 26.

The square root of 216362222 is about 14709.2563374224. The cubic root of 216362222 is about 600.3352034370.

The spelling of 216362222 in words is "two hundred sixteen million, three hundred sixty-two thousand, two hundred twenty-two".