2221682127173 has 8 divisors (see below), whose sum is σ = 2229146704128. Its totient is φ = 2214220419504.

The previous prime is 2221682127163. The next prime is 2221682127179. The reversal of 2221682127173 is 3717212861222.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2221682127173 - 2⁴ = 2221682127157 is a prime.

It is a super-2 number, since 2×2221682127173² (a number of 25 digits) contains 22 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 (2221682127179) 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, 839540 + ... + 2268962.

It is an arithmetic number, because the mean of its divisors is an integer number (278643338016).

Almost surely, 2^{2221682127173} is an apocalyptic number.

It is an amenable number.

2221682127173 is a deficient number, since it is larger than the sum of its proper divisors (7464576955).

2221682127173 is a wasteful number, since it uses less digits than its factorization.

2221682127173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434643.

The product of its digits is 225792, while the sum is 44.

Adding to 2221682127173 its reverse (3717212861222), we get a palindrome (5938894988395).

The spelling of 2221682127173 in words is "two trillion, two hundred twenty-one billion, six hundred eighty-two million, one hundred twenty-seven thousand, one hundred seventy-three".