16222000 has 40 divisors (see below), whose sum is σ = 39229632. Its totient is φ = 6488000.

The previous prime is 16221983. The next prime is 16222001. The reversal of 16222000 is 22261.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2056 + ... + 6055.

Almost surely, 2^16222000 is an apocalyptic number.

16222000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16222000 is an abundant number, since it is smaller than the sum of its proper divisors (23007632).

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

16222000 is an equidigital number, since it uses as much as digits as its factorization.

16222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8134 (or 8118 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 16222000 is about 4027.6544042408. The cubic root of 16222000 is about 253.1442880186.

Adding to 16222000 its reverse (22261), we get a palindrome (16244261).

The spelling of 16222000 in words is "sixteen million, two hundred twenty-two thousand".