12222111121022 has 8 divisors (see below), whose sum is σ = 19999818198072. Its totient is φ = 5555505055000.

The previous prime is 12222111121021. The next prime is 12222111121109. The reversal of 12222111121022 is 22012111122221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12222111120985 and 12222111121003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222111121021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277775252729 + ... + 277775252772.

It is an arithmetic number, because the mean of its divisors is an integer number (2499977274759).

Almost surely, 2^{12222111121022} is an apocalyptic number.

12222111121022 is a deficient number, since it is larger than the sum of its proper divisors (7777707077050).

12222111121022 is a wasteful number, since it uses less digits than its factorization.

12222111121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555550505514.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12222111121022 its reverse (22012111122221), we get a palindrome (34234222243243).

The spelling of 12222111121022 in words is "twelve trillion, two hundred twenty-two billion, one hundred eleven million, one hundred twenty-one thousand, twenty-two".