16222017 has 8 divisors (see below), whose sum is σ = 24719296. Its totient is φ = 9269712.

The previous prime is 16222013. The next prime is 16222027. The reversal of 16222017 is 71022261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16222017 - 2² = 16222013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 772477 = 16222017 / (1 + 6 + 2 + 2 + 2 + 0 + 1 + 7).

It is a junction number, because it is equal to n+sod(n) for n = 16221984 and 16222002.

It is not an unprimeable number, because it can be changed into a prime (16222013) 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, 386218 + ... + 386259.

It is an arithmetic number, because the mean of its divisors is an integer number (3089912).

Almost surely, 2^16222017 is an apocalyptic number.

It is an amenable number.

16222017 is a deficient number, since it is larger than the sum of its proper divisors (8497279).

16222017 is an equidigital number, since it uses as much as digits as its factorization.

16222017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772487.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 16222017 is about 4027.6565146497. The cubic root of 16222017 is about 253.1443764469.

Adding to 16222017 its reverse (71022261), we get a palindrome (87244278).

The spelling of 16222017 in words is "sixteen million, two hundred twenty-two thousand, seventeen".