212221010122222 has 64 divisors (see below), whose sum is σ = 344312200742400. Its totient is φ = 97794277084800.

The previous prime is 212221010122217. The next prime is 212221010122229. The reversal of 212221010122222 is 222221010122212.

It is a junction number, because it is equal to n+sod(n) for n = 212221010122193 and 212221010122202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212221010122229) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 451970023 + ... + 452439325.

It is an arithmetic number, because the mean of its divisors is an integer number (5379878136600).

Almost surely, 2^{212221010122222} is an apocalyptic number.

212221010122222 is a deficient number, since it is larger than the sum of its proper divisors (132091190620178).

212221010122222 is a wasteful number, since it uses less digits than its factorization.

212221010122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471481.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 212221010122222 its reverse (222221010122212), we get a palindrome (434442020244434).

The spelling of 212221010122222 in words is "two hundred twelve trillion, two hundred twenty-one billion, ten million, one hundred twenty-two thousand, two hundred twenty-two".