10000210002021 has 10 divisors (see below), whose sum is σ = 14938585311782. Its totient is φ = 6666806667960.

The previous prime is 10000210002007. The next prime is 10000210002023. The reversal of 10000210002021 is 12020001200001.

It can be written as a sum of positive squares in only one way, i.e., 9925618745025 + 74591256996 = 3150495^2 + 273114^2 .

It is not a de Polignac number, because 10000210002021 - 2²⁹ = 9999673131109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10000210001994 and 10000210002012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000210002023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 61729691290 + ... + 61729691451.

Almost surely, 2^{10000210002021} is an apocalyptic number.

It is an amenable number.

10000210002021 is a deficient number, since it is larger than the sum of its proper divisors (4938375309761).

10000210002021 is an equidigital number, since it uses as much as digits as its factorization.

10000210002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123459382753 (or 123459382744 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 10000210002021 its reverse (12020001200001), we get a palindrome (22020211202022).

The spelling of 10000210002021 in words is "ten trillion, two hundred ten million, two thousand, twenty-one".