22216143 has 8 divisors (see below), whose sum is σ = 29996800. Its totient is φ = 14623128.

The previous prime is 22216133. The next prime is 22216153. The reversal of 22216143 is 34161222.

It is an interprime number because it is at equal distance from previous prime (22216133) and next prime (22216153).

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

It is not a de Polignac number, because 22216143 - 2¹⁸ = 21953999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22216123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46633 + ... + 47106.

It is an arithmetic number, because the mean of its divisors is an integer number (3749600).

Almost surely, 2^22216143 is an apocalyptic number.

22216143 is a deficient number, since it is larger than the sum of its proper divisors (7780657).

22216143 is an equidigital number, since it uses as much as digits as its factorization.

22216143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93821.

The product of its digits is 576, while the sum is 21.

The square root of 22216143 is about 4713.4003649170. The cubic root of 22216143 is about 281.1185823561.

Adding to 22216143 its reverse (34161222), we get a palindrome (56377365).

The spelling of 22216143 in words is "twenty-two million, two hundred sixteen thousand, one hundred forty-three".