212021321301 has 12 divisors (see below), whose sum is σ = 307298255628. Its totient is φ = 140865130944.

The previous prime is 212021321279. The next prime is 212021321377. The reversal of 212021321301 is 103123120212.

212021321301 is a `hidden beast` number, since 2 + 1 + 20 + 21 + 321 + 301 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 122591016900 + 89430304401 = 350130^2 + 299049^2 .

It is not a de Polignac number, because 212021321301 - 2⁹ = 212021320789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021321801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40198600 + ... + 40203873.

It is an arithmetic number, because the mean of its divisors is an integer number (25608187969).

Almost surely, 2^212021321301 is an apocalyptic number.

It is an amenable number.

212021321301 is a deficient number, since it is larger than the sum of its proper divisors (95276934327).

212021321301 is a wasteful number, since it uses less digits than its factorization.

212021321301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80402772 (or 80402769 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 212021321301 its reverse (103123120212), we get a palindrome (315144441513).

The spelling of 212021321301 in words is "two hundred twelve billion, twenty-one million, three hundred twenty-one thousand, three hundred one".