23213441224021 has 8 divisors (see below), whose sum is σ = 23679158078520. Its totient is φ = 22748751310272.

The previous prime is 23213441224003. The next prime is 23213441224027. The reversal of 23213441224021 is 12042214431232.

It can be written as a sum of positive squares in 4 ways, for example, as 6910137293796 + 16303303930225 = 2628714^2 + 4037735^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23213441224021 - 2¹⁷ = 23213441092949 is a prime.

It is a super-2 number, since 2×23213441224021² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23213441224027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256689526 + ... + 256779943.

It is an arithmetic number, because the mean of its divisors is an integer number (2959894759815).

Almost surely, 2^{23213441224021} is an apocalyptic number.

It is an amenable number.

23213441224021 is a deficient number, since it is larger than the sum of its proper divisors (465716854499).

23213441224021 is an equidigital number, since it uses as much as digits as its factorization.

23213441224021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513470375.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 23213441224021 its reverse (12042214431232), we get a palindrome (35255655655253).

The spelling of 23213441224021 in words is "twenty-three trillion, two hundred thirteen billion, four hundred forty-one million, two hundred twenty-four thousand, twenty-one".