222222120021222 has 16 divisors (see below), whose sum is σ = 444447398901360. Its totient is φ = 74073513530592.

The previous prime is 222222120021217. The next prime is 222222120021241. The reversal of 222222120021222 is 222120021222222.

It is a junction number, because it is equal to n+sod(n) for n = 222222120021192 and 222222120021201.

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 7 ways as a sum of consecutive naturals, for example, 130704097 + ... + 132393372.

It is an arithmetic number, because the mean of its divisors is an integer number (27777962431335).

Almost surely, 2^{222222120021222} is an apocalyptic number.

222222120021222 is an abundant number, since it is smaller than the sum of its proper divisors (222225278880138).

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

222222120021222 is a wasteful number, since it uses less digits than its factorization.

222222120021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263238247.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 222222120021222 its reverse (222120021222222), we get a palindrome (444342141243444).

The spelling of 222222120021222 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, one hundred twenty million, twenty-one thousand, two hundred twenty-two".