212211200122 has 4 divisors (see below), whose sum is σ = 318316800186. Its totient is φ = 106105600060.

The previous prime is 212211200063. The next prime is 212211200129. The reversal of 212211200122 is 221002112212.

It is a happy number.

212211200122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 109952591281 + 102258608841 = 331591^2 + 319779^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212211200096 and 212211200105.

It is not an unprimeable number, because it can be changed into a prime (212211200129) 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 as a sum of consecutive naturals, namely, 53052800029 + ... + 53052800032.

Almost surely, 2^212211200122 is an apocalyptic number.

212211200122 is a deficient number, since it is larger than the sum of its proper divisors (106105600064).

212211200122 is a wasteful number, since it uses less digits than its factorization.

212211200122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106105600063.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212211200122 its reverse (221002112212), we get a palindrome (433213312334).

The spelling of 212211200122 in words is "two hundred twelve billion, two hundred eleven million, two hundred thousand, one hundred twenty-two".