223232212230221 has 2 divisors, whose sum is σ = 223232212230222. Its totient is φ = 223232212230220.

The previous prime is 223232212230187. The next prime is 223232212230239. The reversal of 223232212230221 is 122032212232322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219365306292196 + 3866905938025 = 14810986^2 + 1966445^2 .

It is a cyclic number.

It is not a de Polignac number, because 223232212230221 - 2³⁸ = 222957334323277 is a prime.

It is a super-3 number, since 3×223232212230221³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223232212230241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111616106115110 + 111616106115111.

It is an arithmetic number, because the mean of its divisors is an integer number (111616106115111).

Almost surely, 2^{223232212230221} is an apocalyptic number.

It is an amenable number.

223232212230221 is a deficient number, since it is larger than the sum of its proper divisors (1).

223232212230221 is an equidigital number, since it uses as much as digits as its factorization.

223232212230221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 223232212230221 its reverse (122032212232322), we get a palindrome (345264424462543).

The spelling of 223232212230221 in words is "two hundred twenty-three trillion, two hundred thirty-two billion, two hundred twelve million, two hundred thirty thousand, two hundred twenty-one".