223303041220221 has 6 divisors (see below), whose sum is σ = 322548837318110. Its totient is φ = 148868694146808.

The previous prime is 223303041220213. The next prime is 223303041220307. The reversal of 223303041220221 is 122022140303322.

223303041220221 is a `hidden beast` number, since 2 + 2 + 3 + 3 + 0 + 3 + 0 + 412 + 20 + 221 = 666.

It can be written as a sum of positive squares in only one way, i.e., 125220262714596 + 98082778505625 = 11190186^2 + 9903675^2 .

It is not a de Polignac number, because 223303041220221 - 2³ = 223303041220213 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223303041227221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12405724512226 + ... + 12405724512243.

Almost surely, 2^{223303041220221} is an apocalyptic number.

It is an amenable number.

223303041220221 is a deficient number, since it is larger than the sum of its proper divisors (99245796097889).

223303041220221 is a wasteful number, since it uses less digits than its factorization.

223303041220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24811449024475 (or 24811449024472 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 223303041220221 its reverse (122022140303322), we get a palindrome (345325181523543).

The spelling of 223303041220221 in words is "two hundred twenty-three trillion, three hundred three billion, forty-one million, two hundred twenty thousand, two hundred twenty-one".