10012101020021 has 2 divisors, whose sum is σ = 10012101020022. Its totient is φ = 10012101020020.

The previous prime is 10012101020003. The next prime is 10012101020063. The reversal of 10012101020021 is 12002010121001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9767312572900 + 244788447121 = 3125270^2 + 494761^2 .

It is a cyclic number.

It is not a de Polignac number, because 10012101020021 - 2¹⁸ = 10012100757877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10012101019984 and 10012101020011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10012101020071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5006050510010 + 5006050510011.

It is an arithmetic number, because the mean of its divisors is an integer number (5006050510011).

Almost surely, 2^{10012101020021} is an apocalyptic number.

It is an amenable number.

10012101020021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10012101020021 is an equidigital number, since it uses as much as digits as its factorization.

10012101020021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10012101020021 its reverse (12002010121001), we get a palindrome (22014111141022).

The spelling of 10012101020021 in words is "ten trillion, twelve billion, one hundred one million, twenty thousand, twenty-one".