212110020211021 has 8 divisors (see below), whose sum is σ = 224602376209344. Its totient is φ = 199619363766720.

The previous prime is 212110020211007. The next prime is 212110020211049. The reversal of 212110020211021 is 120112020011212.

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 212110020211021 - 2¹¹ = 212110020208973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212110020210986 and 212110020211004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212110020214021) 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, 424631545 + ... + 425130766.

It is an arithmetic number, because the mean of its divisors is an integer number (28075297026168).

Almost surely, 2^{212110020211021} is an apocalyptic number.

It is an amenable number.

212110020211021 is a deficient number, since it is larger than the sum of its proper divisors (12492355998323).

212110020211021 is a wasteful number, since it uses less digits than its factorization.

212110020211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849777011.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212110020211021 its reverse (120112020011212), we get a palindrome (332222040222233).

The spelling of 212110020211021 in words is "two hundred twelve trillion, one hundred ten billion, twenty million, two hundred eleven thousand, twenty-one".