10344221021 has 2 divisors, whose sum is σ = 10344221022. Its totient is φ = 10344221020.

The previous prime is 10344220987. The next prime is 10344221051. The reversal of 10344221021 is 12012244301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7359237796 + 2984983225 = 85786^2 + 54635^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10344221021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10344220984 and 10344221002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10344221051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5172110510 + 5172110511.

It is an arithmetic number, because the mean of its divisors is an integer number (5172110511).

Almost surely, 2^10344221021 is an apocalyptic number.

It is an amenable number.

10344221021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10344221021 is an equidigital number, since it uses as much as digits as its factorization.

10344221021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 10344221021 its reverse (12012244301), we get a palindrome (22356465322).

The spelling of 10344221021 in words is "ten billion, three hundred forty-four million, two hundred twenty-one thousand, twenty-one".