1004233320221 has 2 divisors, whose sum is σ = 1004233320222. Its totient is φ = 1004233320220.

The previous prime is 1004233320173. The next prime is 1004233320257. The reversal of 1004233320221 is 1220233324001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 862138248196 + 142095072025 = 928514^2 + 376955^2 .

It is an emirp because it is prime and its reverse (1220233324001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1004233320221 - 2¹⁰ = 1004233319197 is a prime.

It is a super-2 number, since 2×1004233320221² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1004233320271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502116660110 + 502116660111.

It is an arithmetic number, because the mean of its divisors is an integer number (502116660111).

Almost surely, 2^{1004233320221} is an apocalyptic number.

It is an amenable number.

1004233320221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1004233320221 is an equidigital number, since it uses as much as digits as its factorization.

1004233320221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 1004233320221 its reverse (1220233324001), we get a palindrome (2224466644222).

The spelling of 1004233320221 in words is "one trillion, four billion, two hundred thirty-three million, three hundred twenty thousand, two hundred twenty-one".