24134420221 has 4 divisors (see below), whose sum is σ = 24200181952. Its totient is φ = 24068658492.

The previous prime is 24134420183. The next prime is 24134420227. The reversal of 24134420221 is 12202443142.

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 24134420221 - 2²¹ = 24132323069 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 (24134420227) 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, 32880315 + ... + 32881048.

It is an arithmetic number, because the mean of its divisors is an integer number (6050045488).

Almost surely, 2^24134420221 is an apocalyptic number.

It is an amenable number.

24134420221 is a deficient number, since it is larger than the sum of its proper divisors (65761731).

24134420221 is an equidigital number, since it uses as much as digits as its factorization.

24134420221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65761730.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 24134420221 its reverse (12202443142), we get a palindrome (36336863363).

The spelling of 24134420221 in words is "twenty-four billion, one hundred thirty-four million, four hundred twenty thousand, two hundred twenty-one".