16671222 has 12 divisors (see below), whose sum is σ = 36121020. Its totient is φ = 5557068.

The previous prime is 16671209. The next prime is 16671233. The reversal of 16671222 is 22217661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 463072 + ... + 463107.

It is an arithmetic number, because the mean of its divisors is an integer number (3010085).

Almost surely, 2^16671222 is an apocalyptic number.

16671222 is an abundant number, since it is smaller than the sum of its proper divisors (19449798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16671222 is a wasteful number, since it uses less digits than its factorization.

16671222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926187 (or 926184 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 16671222 is about 4083.0407786355. The cubic root of 16671222 is about 255.4597473106.

Adding to 16671222 its reverse (22217661), we get a palindrome (38888883).

The spelling of 16671222 in words is "sixteen million, six hundred seventy-one thousand, two hundred twenty-two".