24420002042021 has 4 divisors (see below), whose sum is σ = 24729115992000. Its totient is φ = 24110888092044.

The previous prime is 24420002041951. The next prime is 24420002042027. The reversal of 24420002042021 is 12024020002442.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 24420002042021 - 2³⁰ = 24418928300197 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 (24420002042027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154556974871 + ... + 154556975028.

It is an arithmetic number, because the mean of its divisors is an integer number (6182278998000).

Almost surely, 2^{24420002042021} is an apocalyptic number.

It is an amenable number.

24420002042021 is a deficient number, since it is larger than the sum of its proper divisors (309113949979).

24420002042021 is an equidigital number, since it uses as much as digits as its factorization.

24420002042021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309113949978.

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 24420002042021 its reverse (12024020002442), we get a palindrome (36444022044463).

The spelling of 24420002042021 in words is "twenty-four trillion, four hundred twenty billion, two million, forty-two thousand, twenty-one".