212201200002122 has 16 divisors (see below), whose sum is σ = 343226587939200. Its totient is φ = 98064739409760.

The previous prime is 212201200002109. The next prime is 212201200002161. The reversal of 212201200002122 is 221200002102212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 212201200002122.

It is an unprimeable number.

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, 68100511922 + ... + 68100515037.

It is an arithmetic number, because the mean of its divisors is an integer number (21451661746200).

Almost surely, 2^{212201200002122} is an apocalyptic number.

212201200002122 is a deficient number, since it is larger than the sum of its proper divisors (131025387937078).

212201200002122 is a wasteful number, since it uses less digits than its factorization.

212201200002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136201027021.

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

Adding to 212201200002122 its reverse (221200002102212), we get a palindrome (433401202104334).

The spelling of 212201200002122 in words is "two hundred twelve trillion, two hundred one billion, two hundred million, two thousand, one hundred twenty-two".