10404234221 has 2 divisors, whose sum is σ = 10404234222. Its totient is φ = 10404234220.

The previous prime is 10404234179. The next prime is 10404234233. The reversal of 10404234221 is 12243240401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9567578596 + 836655625 = 97814^2 + 28925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10404234221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10404254221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5202117110 + 5202117111.

It is an arithmetic number, because the mean of its divisors is an integer number (5202117111).

Almost surely, 2^10404234221 is an apocalyptic number.

It is an amenable number.

10404234221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10404234221 is an equidigital number, since it uses as much as digits as its factorization.

10404234221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 10404234221 its reverse (12243240401), we get a palindrome (22647474622).

The spelling of 10404234221 in words is "ten billion, four hundred four million, two hundred thirty-four thousand, two hundred twenty-one".