24040202421021 has 16 divisors (see below), whose sum is σ = 32195709273600. Its totient is φ = 15955752542768.

The previous prime is 24040202421019. The next prime is 24040202421031. The reversal of 24040202421021 is 12012420204042.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 24040202421021 - 2¹ = 24040202421019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 24040202420982 and 24040202421000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24040202421031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24816400 + ... + 25766918.

It is an arithmetic number, because the mean of its divisors is an integer number (2012231829600).

Almost surely, 2^{24040202421021} is an apocalyptic number.

It is an amenable number.

24040202421021 is a deficient number, since it is larger than the sum of its proper divisors (8155506852579).

24040202421021 is a wasteful number, since it uses less digits than its factorization.

24040202421021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987888.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 24040202421021 its reverse (12012420204042), we get a palindrome (36052622625063).

The spelling of 24040202421021 in words is "twenty-four trillion, forty billion, two hundred two million, four hundred twenty-one thousand, twenty-one".