10221403121 has 2 divisors, whose sum is σ = 10221403122. Its totient is φ = 10221403120.

The previous prime is 10221403097. The next prime is 10221403147. The reversal of 10221403121 is 12130412201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9932912896 + 288490225 = 99664^2 + 16985^2 .

It is a cyclic number.

It is not a de Polignac number, because 10221403121 - 2⁶ = 10221403057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10221403121.

It is not a weakly prime, because it can be changed into another prime (10221403721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110701560 + 5110701561.

It is an arithmetic number, because the mean of its divisors is an integer number (5110701561).

Almost surely, 2^10221403121 is an apocalyptic number.

It is an amenable number.

10221403121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221403121 is an equidigital number, since it uses as much as digits as its factorization.

10221403121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 10221403121 its reverse (12130412201), we get a palindrome (22351815322).

The spelling of 10221403121 in words is "ten billion, two hundred twenty-one million, four hundred three thousand, one hundred twenty-one".