222055171 has 4 divisors (see below), whose sum is σ = 239136352. Its totient is φ = 204973992.

The previous prime is 222055159. The next prime is 222055177. The reversal of 222055171 is 171550222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 171550222 = 2 ⋅85775111.

It is a cyclic number.

It is not a de Polignac number, because 222055171 - 2¹¹ = 222053123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222055177) 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 3 ways as a sum of consecutive naturals, for example, 8540571 + ... + 8540596.

It is an arithmetic number, because the mean of its divisors is an integer number (59784088).

Almost surely, 2^222055171 is an apocalyptic number.

222055171 is a deficient number, since it is larger than the sum of its proper divisors (17081181).

222055171 is a wasteful number, since it uses less digits than its factorization.

222055171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17081180.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 222055171 is about 14901.5157282741. The cubic root of 222055171 is about 605.5550501219. Note that the first 3 decimals are identical.

The spelling of 222055171 in words is "two hundred twenty-two million, fifty-five thousand, one hundred seventy-one".