222120201222 has 48 divisors (see below), whose sum is σ = 488851009920. Its totient is φ = 72879751296.

The previous prime is 222120201221. The next prime is 222120201239. The reversal of 222120201222 is 222102021222.

222120201222 is a `hidden beast` number, since 2 + 221 + 20 + 201 + 222 = 666.

222120201222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 222120201195 and 222120201204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222120201221) 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 in 23 ways as a sum of consecutive naturals, for example, 46368 + ... + 668124.

It is an arithmetic number, because the mean of its divisors is an integer number (10184396040).

Almost surely, 2^222120201222 is an apocalyptic number.

222120201222 is an abundant number, since it is smaller than the sum of its proper divisors (266730808698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222120201222 is a wasteful number, since it uses less digits than its factorization.

222120201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622077 (or 622074 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 222120201222 its reverse (222102021222), we get a palindrome (444222222444).

The spelling of 222120201222 in words is "two hundred twenty-two billion, one hundred twenty million, two hundred one thousand, two hundred twenty-two".