24224224421 has 2 divisors, whose sum is σ = 24224224422. Its totient is φ = 24224224420.

The previous prime is 24224224417. The next prime is 24224224469. The reversal of 24224224421 is 12442242242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12519148321 + 11705076100 = 111889^2 + 108190^2 .

It is a cyclic number.

It is not a de Polignac number, because 24224224421 - 2² = 24224224417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24224224621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12112112210 + 12112112211.

It is an arithmetic number, because the mean of its divisors is an integer number (12112112211).

Almost surely, 2^24224224421 is an apocalyptic number.

It is an amenable number.

24224224421 is a deficient number, since it is larger than the sum of its proper divisors (1).

24224224421 is an equidigital number, since it uses as much as digits as its factorization.

24224224421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16384, while the sum is 29.

Adding to 24224224421 its reverse (12442242242), we get a palindrome (36666466663).

The spelling of 24224224421 in words is "twenty-four billion, two hundred twenty-four million, two hundred twenty-four thousand, four hundred twenty-one".