10021141440421 has 4 divisors (see below), whose sum is σ = 10021945911532. Its totient is φ = 10020336969312.

The previous prime is 10021141440389. The next prime is 10021141440487. The reversal of 10021141440421 is 12404414112001.

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 8835250932225 + 1185890508196 = 2972415^2 + 1088986^2 .

It is a cyclic number.

It is not a de Polignac number, because 10021141440421 - 2⁵ = 10021141440389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021141444421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402216870 + ... + 402241783.

It is an arithmetic number, because the mean of its divisors is an integer number (2505486477883).

Almost surely, 2^{10021141440421} is an apocalyptic number.

It is an amenable number.

10021141440421 is a deficient number, since it is larger than the sum of its proper divisors (804471111).

10021141440421 is an equidigital number, since it uses as much as digits as its factorization.

10021141440421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804471110.

The product of its (nonzero) digits is 1024, while the sum is 25.

Adding to 10021141440421 its reverse (12404414112001), we get a palindrome (22425555552422).

The spelling of 10021141440421 in words is "ten trillion, twenty-one billion, one hundred forty-one million, four hundred forty thousand, four hundred twenty-one".