2404420423221 has 4 divisors (see below), whose sum is σ = 3205893897632. Its totient is φ = 1602946948812.

The previous prime is 2404420423201. The next prime is 2404420423271. The reversal of 2404420423221 is 1223240244042.

It is a happy number.

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 not a de Polignac number, because 2404420423221 - 2⁹ = 2404420422709 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 (2404420423201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400736737201 + ... + 400736737206.

It is an arithmetic number, because the mean of its divisors is an integer number (801473474408).

Almost surely, 2^{2404420423221} is an apocalyptic number.

It is an amenable number.

2404420423221 is a deficient number, since it is larger than the sum of its proper divisors (801473474411).

2404420423221 is an equidigital number, since it uses as much as digits as its factorization.

2404420423221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801473474410.

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 2404420423221 its reverse (1223240244042), we get a palindrome (3627660667263).

The spelling of 2404420423221 in words is "two trillion, four hundred four billion, four hundred twenty million, four hundred twenty-three thousand, two hundred twenty-one".