12102212112222 has 16 divisors (see below), whose sum is σ = 25256790495360. Its totient is φ = 3858676325592.

The previous prime is 12102212112163. The next prime is 12102212112223. The reversal of 12102212112222 is 22221121220121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102212112223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43848594472 + ... + 43848594747.

It is an arithmetic number, because the mean of its divisors is an integer number (1578549405960).

Almost surely, 2^{12102212112222} is an apocalyptic number.

12102212112222 is an abundant number, since it is smaller than the sum of its proper divisors (13154578383138).

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

12102212112222 is a wasteful number, since it uses less digits than its factorization.

12102212112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87697189247.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12102212112222 its reverse (22221121220121), we get a palindrome (34323333332343).

The spelling of 12102212112222 in words is "twelve trillion, one hundred two billion, two hundred twelve million, one hundred twelve thousand, two hundred twenty-two".