10210102010221 has 4 divisors (see below), whose sum is σ = 10211958060444. Its totient is φ = 10208245960000.

The previous prime is 10210102010071. The next prime is 10210102010237. The reversal of 10210102010221 is 12201020101201.

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 9504821174121 + 705280836100 = 3082989^2 + 839810^2 .

It is a cyclic number.

It is not a de Polignac number, because 10210102010221 - 2¹¹ = 10210102008173 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 (10210102010291) 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 3 ways as a sum of consecutive naturals, for example, 928016860 + ... + 928027861.

It is an arithmetic number, because the mean of its divisors is an integer number (2552989515111).

Almost surely, 2^{10210102010221} is an apocalyptic number.

It is an amenable number.

10210102010221 is a deficient number, since it is larger than the sum of its proper divisors (1856050223).

10210102010221 is an equidigital number, since it uses as much as digits as its factorization.

10210102010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856050222.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10210102010221 its reverse (12201020101201), we get a palindrome (22411122111422).

The spelling of 10210102010221 in words is "ten trillion, two hundred ten billion, one hundred two million, ten thousand, two hundred twenty-one".