24121513004221 has 2 divisors, whose sum is σ = 24121513004222. Its totient is φ = 24121513004220.

The previous prime is 24121513004201. The next prime is 24121513004273. The reversal of 24121513004221 is 12240031512142.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20035596540996 + 4085916463225 = 4476114^2 + 2021365^2 .

It is a cyclic number.

It is not a de Polignac number, because 24121513004221 - 2³⁷ = 23984074050749 is a prime.

It is a super-2 number, since 2×24121513004221² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 24121513004221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24121513004201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12060756502110 + 12060756502111.

It is an arithmetic number, because the mean of its divisors is an integer number (12060756502111).

Almost surely, 2^{24121513004221} is an apocalyptic number.

It is an amenable number.

24121513004221 is a deficient number, since it is larger than the sum of its proper divisors (1).

24121513004221 is an equidigital number, since it uses as much as digits as its factorization.

24121513004221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 24121513004221 its reverse (12240031512142), we get a palindrome (36361544516363).

The spelling of 24121513004221 in words is "twenty-four trillion, one hundred twenty-one billion, five hundred thirteen million, four thousand, two hundred twenty-one".