10010200010021 has 2 divisors, whose sum is σ = 10010200010022. Its totient is φ = 10010200010020.

The previous prime is 10010200010017. The next prime is 10010200010123. The reversal of 10010200010021 is 12001000201001.

10010200010021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8425406049025 + 1584793960996 = 2902655^2 + 1258886^2 .

It is a cyclic number.

It is not a de Polignac number, because 10010200010021 - 2² = 10010200010017 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10010200009990 and 10010200010008.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10010200019021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005100005010 + 5005100005011.

It is an arithmetic number, because the mean of its divisors is an integer number (5005100005011).

Almost surely, 2^{10010200010021} is an apocalyptic number.

It is an amenable number.

10010200010021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10010200010021 is an equidigital number, since it uses as much as digits as its factorization.

10010200010021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 10010200010021 its reverse (12001000201001), we get a palindrome (22011200211022).

The spelling of 10010200010021 in words is "ten trillion, ten billion, two hundred million, ten thousand, twenty-one".