10326435221 has 4 divisors (see below), whose sum is σ = 10386125772. Its totient is φ = 10266744672.

The previous prime is 10326435139. The next prime is 10326435247. The reversal of 10326435221 is 12253462301.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12253462301 = 229 ⋅53508569.

It can be written as a sum of positive squares in 2 ways, for example, as 9333492100 + 992943121 = 96610^2 + 31511^2 .

It is a cyclic number.

It is not a de Polignac number, because 10326435221 - 2¹⁰ = 10326434197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10326435271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29845016 + ... + 29845361.

It is an arithmetic number, because the mean of its divisors is an integer number (2596531443).

Almost surely, 2^10326435221 is an apocalyptic number.

It is an amenable number.

10326435221 is a deficient number, since it is larger than the sum of its proper divisors (59690551).

10326435221 is an equidigital number, since it uses as much as digits as its factorization.

10326435221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59690550.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 10326435221 its reverse (12253462301), we get a palindrome (22579897522).

The spelling of 10326435221 in words is "ten billion, three hundred twenty-six million, four hundred thirty-five thousand, two hundred twenty-one".