452033243221 has 6 divisors (see below), whose sum is σ = 525834589110. Its totient is φ = 387457065576.

The previous prime is 452033243183. The next prime is 452033243261. The reversal of 452033243221 is 122342330254.

It can be written as a sum of positive squares in only one way, i.e., 269267588100 + 182765655121 = 518910^2 + 427511^2 .

It is not a de Polignac number, because 452033243221 - 2⁹ = 452033242709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452033243261) 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, 4612584066 + ... + 4612584163.

It is an arithmetic number, because the mean of its divisors is an integer number (87639098185).

Almost surely, 2^452033243221 is an apocalyptic number.

It is an amenable number.

452033243221 is a deficient number, since it is larger than the sum of its proper divisors (73801345889).

452033243221 is an equidigital number, since it uses as much as digits as its factorization.

452033243221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9225168243 (or 9225168236 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 452033243221 its reverse (122342330254), we get a palindrome (574375573475).

The spelling of 452033243221 in words is "four hundred fifty-two billion, thirty-three million, two hundred forty-three thousand, two hundred twenty-one".