24100142221 has 2 divisors, whose sum is σ = 24100142222. Its totient is φ = 24100142220.

The previous prime is 24100142207. The next prime is 24100142251. The reversal of 24100142221 is 12224100142.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15722401321 + 8377740900 = 125389^2 + 91530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24100142221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24100142251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12050071110 + 12050071111.

It is an arithmetic number, because the mean of its divisors is an integer number (12050071111).

Almost surely, 2^24100142221 is an apocalyptic number.

It is an amenable number.

24100142221 is a deficient number, since it is larger than the sum of its proper divisors (1).

24100142221 is an equidigital number, since it uses as much as digits as its factorization.

24100142221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 24100142221 its reverse (12224100142), we get a palindrome (36324242363).

The spelling of 24100142221 in words is "twenty-four billion, one hundred million, one hundred forty-two thousand, two hundred twenty-one".