216484222 has 32 divisors (see below), whose sum is σ = 356638464. Its totient is φ = 98112000.

The previous prime is 216484193. The next prime is 216484241. The reversal of 216484222 is 222484612.

It is a Harshad number since it is a multiple of its sum of digits (31).

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 15 ways as a sum of consecutive naturals, for example, 308472 + ... + 309172.

It is an arithmetic number, because the mean of its divisors is an integer number (11144952).

Almost surely, 2^216484222 is an apocalyptic number.

216484222 is a deficient number, since it is larger than the sum of its proper divisors (140154242).

216484222 is a wasteful number, since it uses less digits than its factorization.

216484222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044.

The product of its digits is 12288, while the sum is 31.

The square root of 216484222 is about 14713.4028015276. The cubic root of 216484222 is about 600.4480190853.

The spelling of 216484222 in words is "two hundred sixteen million, four hundred eighty-four thousand, two hundred twenty-two".