10024421021 has 2 divisors, whose sum is σ = 10024421022. Its totient is φ = 10024421020.

The previous prime is 10024421003. The next prime is 10024421047. The reversal of 10024421021 is 12012442001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5429479225 + 4594941796 = 73685^2 + 67786^2 .

It is a cyclic number.

It is not a de Polignac number, because 10024421021 - 2¹⁸ = 10024158877 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10024421081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5012210510 + 5012210511.

It is an arithmetic number, because the mean of its divisors is an integer number (5012210511).

Almost surely, 2^10024421021 is an apocalyptic number.

It is an amenable number.

10024421021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10024421021 is an equidigital number, since it uses as much as digits as its factorization.

10024421021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 10024421021 its reverse (12012442001), we get a palindrome (22036863022).

The spelling of 10024421021 in words is "ten billion, twenty-four million, four hundred twenty-one thousand, twenty-one".