2216223221173 has 16 divisors (see below), whose sum is σ = 2452425212160. Its totient is φ = 1989808398144.

The previous prime is 2216223221143. The next prime is 2216223221207. The reversal of 2216223221173 is 3711223226122.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2216223221173 - 2²⁹ = 2215686350261 is a prime.

It is a super-3 number, since 3×2216223221173³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216223221143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8160586 + ... + 8427787.

It is an arithmetic number, because the mean of its divisors is an integer number (153276575760).

Almost surely, 2^{2216223221173} is an apocalyptic number.

It is an amenable number.

2216223221173 is a deficient number, since it is larger than the sum of its proper divisors (236201990987).

2216223221173 is a wasteful number, since it uses less digits than its factorization.

2216223221173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16588668.

The product of its digits is 24192, while the sum is 34.

Adding to 2216223221173 its reverse (3711223226122), we get a palindrome (5927446447295).

The spelling of 2216223221173 in words is "two trillion, two hundred sixteen billion, two hundred twenty-three million, two hundred twenty-one thousand, one hundred seventy-three".