16204222 has 4 divisors (see below), whose sum is σ = 24306336. Its totient is φ = 8102110.

The previous prime is 16204211. The next prime is 16204229. The reversal of 16204222 is 22240261.

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

It is a self number, because there is not a number n which added to its sum of digits gives 16204222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16204229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4051054 + ... + 4051057.

It is an arithmetic number, because the mean of its divisors is an integer number (6076584).

Almost surely, 2^16204222 is an apocalyptic number.

16204222 is a deficient number, since it is larger than the sum of its proper divisors (8102114).

16204222 is an equidigital number, since it uses as much as digits as its factorization.

16204222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8102113.

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

The square root of 16204222 is about 4025.4468074985. The cubic root of 16204222 is about 253.0517789943.

Adding to 16204222 its reverse (22240261), we get a palindrome (38444483).

The spelling of 16204222 in words is "sixteen million, two hundred four thousand, two hundred twenty-two".