10121422321 has 4 divisors (see below), whose sum is σ = 10121894644. Its totient is φ = 10120950000.

The previous prime is 10121422313. The next prime is 10121422331. The reversal of 10121422321 is 12322412101.

10121422321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6255069921 + 3866352400 = 79089^2 + 62180^2 .

It is a cyclic number.

It is not a de Polignac number, because 10121422321 - 2³ = 10121422313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10121422331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202410 + ... + 247411.

It is an arithmetic number, because the mean of its divisors is an integer number (2530473661).

Almost surely, 2^10121422321 is an apocalyptic number.

It is an amenable number.

10121422321 is a deficient number, since it is larger than the sum of its proper divisors (472323).

10121422321 is an equidigital number, since it uses as much as digits as its factorization.

10121422321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472322.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 10121422321 its reverse (12322412101), we get a palindrome (22443834422).

The spelling of 10121422321 in words is "ten billion, one hundred twenty-one million, four hundred twenty-two thousand, three hundred twenty-one".