212201222201 has 16 divisors (see below), whose sum is σ = 223746840000. Its totient is φ = 200693615616.

The previous prime is 212201222171. The next prime is 212201222237. The reversal of 212201222201 is 102222102212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212201222201 - 2³⁴ = 195021353017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212201222201.

It is not an unprimeable number, because it can be changed into a prime (212201228201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43401365 + ... + 43406253.

It is an arithmetic number, because the mean of its divisors is an integer number (13984177500).

Almost surely, 2^212201222201 is an apocalyptic number.

It is an amenable number.

212201222201 is a deficient number, since it is larger than the sum of its proper divisors (11545617799).

212201222201 is a wasteful number, since it uses less digits than its factorization.

212201222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8296.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212201222201 its reverse (102222102212), we get a palindrome (314423324413).

It can be divided in two parts, 21220 and 1222201, that added together give a palindrome (1243421).

The spelling of 212201222201 in words is "two hundred twelve billion, two hundred one million, two hundred twenty-two thousand, two hundred one".