212101221201 has 8 divisors (see below), whose sum is σ = 282823074720. Its totient is φ = 141390090912.

The previous prime is 212101221193. The next prime is 212101221209. The reversal of 212101221201 is 102122101212.

212101221201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (212101221193) and next prime (212101221209).

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

It is not a de Polignac number, because 212101221201 - 2³ = 212101221193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212101221209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2634540 + ... + 2713853.

It is an arithmetic number, because the mean of its divisors is an integer number (35352884340).

Almost surely, 2^212101221201 is an apocalyptic number.

It is an amenable number.

212101221201 is a deficient number, since it is larger than the sum of its proper divisors (70721853519).

212101221201 is a wasteful number, since it uses less digits than its factorization.

212101221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5361615.

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

Adding to 212101221201 its reverse (102122101212), we get a palindrome (314223322413).

The spelling of 212101221201 in words is "two hundred twelve billion, one hundred one million, two hundred twenty-one thousand, two hundred one".