16222004 has 12 divisors (see below), whose sum is σ = 28459200. Its totient is φ = 8090808.

The previous prime is 16222001. The next prime is 16222007. The reversal of 16222004 is 40022261.

It is an interprime number because it is at equal distance from previous prime (16222001) and next prime (16222007).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16222001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3164 + ... + 6515.

It is an arithmetic number, because the mean of its divisors is an integer number (2371600).

Almost surely, 2^16222004 is an apocalyptic number.

It is an amenable number.

16222004 is a deficient number, since it is larger than the sum of its proper divisors (12237196).

16222004 is a wasteful number, since it uses less digits than its factorization.

16222004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10102 (or 10100 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 16222004 is about 4027.6549008077. The cubic root of 16222004 is about 253.1443088253.

Adding to 16222004 its reverse (40022261), we get a palindrome (56244265).

The spelling of 16222004 in words is "sixteen million, two hundred twenty-two thousand, four".