16228222 has 4 divisors (see below), whose sum is σ = 24342336. Its totient is φ = 8114110.

The previous prime is 16228213. The next prime is 16228231. The reversal of 16228222 is 22282261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22282261 = 3391 ⋅6571.

It is an interprime number because it is at equal distance from previous prime (16228213) and next prime (16228231).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4057054 + ... + 4057057.

It is an arithmetic number, because the mean of its divisors is an integer number (6085584).

Almost surely, 2^16228222 is an apocalyptic number.

16228222 is a deficient number, since it is larger than the sum of its proper divisors (8114114).

16228222 is an equidigital number, since it uses as much as digits as its factorization.

16228222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8114113.

The product of its digits is 1536, while the sum is 25.

The square root of 16228222 is about 4028.4267400562. The cubic root of 16228222 is about 253.1766486488.

The spelling of 16228222 in words is "sixteen million, two hundred twenty-eight thousand, two hundred twenty-two".