212110020201021 has 16 divisors (see below), whose sum is σ = 283984731088128. Its totient is φ = 140821579539200.

The previous prime is 212110020201007. The next prime is 212110020201031. The reversal of 212110020201021 is 120102020011212.

It is a cyclic number.

It is not a de Polignac number, because 212110020201021 - 2¹⁹ = 212110019676733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212110020201031) 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 15 ways as a sum of consecutive naturals, for example, 71650101 + ... + 74551706.

It is an arithmetic number, because the mean of its divisors is an integer number (17749045693008).

Almost surely, 2^{212110020201021} is an apocalyptic number.

It is an amenable number.

212110020201021 is a deficient number, since it is larger than the sum of its proper divisors (71874710887107).

212110020201021 is a wasteful number, since it uses less digits than its factorization.

212110020201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146203812.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212110020201021 its reverse (120102020011212), we get a palindrome (332212040212233).

The spelling of 212110020201021 in words is "two hundred twelve trillion, one hundred ten billion, twenty million, two hundred one thousand, twenty-one".