222112021222 has 64 divisors (see below), whose sum is σ = 411825254400. Its totient is φ = 87489601920.

The previous prime is 222112021213. The next prime is 222112021279. The reversal of 222112021222 is 222120211222.

It is a self number, because there is not a number n which added to its sum of digits gives 222112021222.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 42801804 + ... + 42806992.

It is an arithmetic number, because the mean of its divisors is an integer number (6434769600).

Almost surely, 2^222112021222 is an apocalyptic number.

222112021222 is a deficient number, since it is larger than the sum of its proper divisors (189713233178).

222112021222 is a wasteful number, since it uses less digits than its factorization.

222112021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6181.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222112021222 its reverse (222120211222), we get a palindrome (444232232444).

The spelling of 222112021222 in words is "two hundred twenty-two billion, one hundred twelve million, twenty-one thousand, two hundred twenty-two".