223201232171 has 2 divisors, whose sum is σ = 223201232172. Its totient is φ = 223201232170.

The previous prime is 223201232153. The next prime is 223201232179. The reversal of 223201232171 is 171232102322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223201232171 - 2²² = 223197037867 is a prime.

It is a super-3 number, since 3×223201232171³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 223201232171.

It is not a weakly prime, because it can be changed into another prime (223201232179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111600616085 + 111600616086.

It is an arithmetic number, because the mean of its divisors is an integer number (111600616086).

Almost surely, 2^223201232171 is an apocalyptic number.

223201232171 is a deficient number, since it is larger than the sum of its proper divisors (1).

223201232171 is an equidigital number, since it uses as much as digits as its factorization.

223201232171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

Adding to 223201232171 its reverse (171232102322), we get a palindrome (394433334493).

The spelling of 223201232171 in words is "two hundred twenty-three billion, two hundred one million, two hundred thirty-two thousand, one hundred seventy-one".