10021540459771 has 2 divisors, whose sum is σ = 10021540459772. Its totient is φ = 10021540459770.

The previous prime is 10021540459757. The next prime is 10021540459789. The reversal of 10021540459771 is 17795404512001.

It is a weak prime.

It is an emirp because it is prime and its reverse (17795404512001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10021540459771 - 2²⁵ = 10021506905339 is a prime.

It is not a weakly prime, because it can be changed into another prime (10021540459471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010770229885 + 5010770229886.

It is an arithmetic number, because the mean of its divisors is an integer number (5010770229886).

Almost surely, 2^{10021540459771} is an apocalyptic number.

10021540459771 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021540459771 is an equidigital number, since it uses as much as digits as its factorization.

10021540459771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 352800, while the sum is 46.

The spelling of 10021540459771 in words is "ten trillion, twenty-one billion, five hundred forty million, four hundred fifty-nine thousand, seven hundred seventy-one".