24102224221 has 2 divisors, whose sum is σ = 24102224222. Its totient is φ = 24102224220.

The previous prime is 24102224177. The next prime is 24102224227. The reversal of 24102224221 is 12242220142.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13531505625 + 10570718596 = 116325^2 + 102814^2 .

It is a cyclic number.

It is not a de Polignac number, because 24102224221 - 2⁷ = 24102224093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 24102224192 and 24102224201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24102224227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12051112110 + 12051112111.

It is an arithmetic number, because the mean of its divisors is an integer number (12051112111).

Almost surely, 2^24102224221 is an apocalyptic number.

It is an amenable number.

24102224221 is a deficient number, since it is larger than the sum of its proper divisors (1).

24102224221 is an equidigital number, since it uses as much as digits as its factorization.

24102224221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 24102224221 its reverse (12242220142), we get a palindrome (36344444363).

The spelling of 24102224221 in words is "twenty-four billion, one hundred two million, two hundred twenty-four thousand, two hundred twenty-one".