12221202112222 has 8 divisors (see below), whose sum is σ = 18387186260472. Its totient is φ = 6092140025400.

The previous prime is 12221202112213. The next prime is 12221202112261. The reversal of 12221202112222 is 22221120212221.

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 = 12221202112193 and 12221202112202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9230514529 + ... + 9230515852.

It is an arithmetic number, because the mean of its divisors is an integer number (2298398282559).

Almost surely, 2^{12221202112222} is an apocalyptic number.

12221202112222 is a deficient number, since it is larger than the sum of its proper divisors (6165984148250).

12221202112222 is a wasteful number, since it uses less digits than its factorization.

12221202112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18461030714.

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

Adding to 12221202112222 its reverse (22221120212221), we get a palindrome (34442322324443).

The spelling of 12221202112222 in words is "twelve trillion, two hundred twenty-one billion, two hundred two million, one hundred twelve thousand, two hundred twenty-two".