212010110200021 has 8 divisors (see below), whose sum is σ = 244520179523840. Its totient is φ = 180055768557168.

The previous prime is 212010110199977. The next prime is 212010110200033. The reversal of 212010110200021 is 120002011010212.

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

It is not a de Polignac number, because 212010110200021 - 2¹⁵ = 212010110167253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212010110199974 and 212010110200010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212010110200061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138931919421 + ... + 138931920946.

It is an arithmetic number, because the mean of its divisors is an integer number (30565022440480).

Almost surely, 2^{212010110200021} is an apocalyptic number.

It is an amenable number.

212010110200021 is a deficient number, since it is larger than the sum of its proper divisors (32510069323819).

212010110200021 is a wasteful number, since it uses less digits than its factorization.

212010110200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277863840483.

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

Adding to 212010110200021 its reverse (120002011010212), we get a palindrome (332012121210233).

The spelling of 212010110200021 in words is "two hundred twelve trillion, ten billion, one hundred ten million, two hundred thousand, twenty-one".