10210110010021 has 4 divisors (see below), whose sum is σ = 10214398172844. Its totient is φ = 10205821847200.

The previous prime is 10210110009997. The next prime is 10210110010027. The reversal of 10210110010021 is 12001001101201.

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 550135207521 + 9659974802500 = 741711^2 + 3108050^2 .

It is a cyclic number.

It is not a de Polignac number, because 10210110010021 - 2¹¹ = 10210110007973 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 (10210110010027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2144077840 + ... + 2144082601.

It is an arithmetic number, because the mean of its divisors is an integer number (2553599543211).

Almost surely, 2^{10210110010021} is an apocalyptic number.

It is an amenable number.

10210110010021 is a deficient number, since it is larger than the sum of its proper divisors (4288162823).

10210110010021 is an equidigital number, since it uses as much as digits as its factorization.

10210110010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4288162822.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10210110010021 its reverse (12001001101201), we get a palindrome (22211111111222).

The spelling of 10210110010021 in words is "ten trillion, two hundred ten billion, one hundred ten million, ten thousand, twenty-one".