210010110202021 has 8 divisors (see below), whose sum is σ = 210729005736984. Its totient is φ = 209291229208320.

The previous prime is 210010110202019. The next prime is 210010110202051. The reversal of 210010110202021 is 120202011010012.

It can be written as a sum of positive squares in 4 ways, for example, as 36006600302500 + 174003509899521 = 6000550^2 + 13191039^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 210010110202021 - 2¹ = 210010110202019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210010110201992 and 210010110202010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210010110202051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25703385 + ... + 32873761.

It is an arithmetic number, because the mean of its divisors is an integer number (26341125717123).

Almost surely, 2^{210010110202021} is an apocalyptic number.

It is an amenable number.

210010110202021 is a deficient number, since it is larger than the sum of its proper divisors (718895534963).

210010110202021 is an equidigital number, since it uses as much as digits as its factorization.

210010110202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7270631.

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

Adding to 210010110202021 its reverse (120202011010012), we get a palindrome (330212121212033).

The spelling of 210010110202021 in words is "two hundred ten trillion, ten billion, one hundred ten million, two hundred two thousand, twenty-one".