12102213222 has 96 divisors (see below), whose sum is σ = 29155800960. Its totient is φ = 3597039360.

The previous prime is 12102213203. The next prime is 12102213223. The reversal of 12102213222 is 22231220121.

12102213222 is a `hidden beast` number, since 121 + 0 + 221 + 322 + 2 = 666.

12102213222 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 = 12102213195 and 12102213204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102213223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6926553 + ... + 6928299.

It is an arithmetic number, because the mean of its divisors is an integer number (303706260).

Almost surely, 2^12102213222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12102213222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14577900480).

12102213222 is an abundant number, since it is smaller than the sum of its proper divisors (17053587738).

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

12102213222 is a wasteful number, since it uses less digits than its factorization.

12102213222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2418 (or 2415 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12102213222 its reverse (22231220121), we get a palindrome (34333433343).

The spelling of 12102213222 in words is "twelve billion, one hundred two million, two hundred thirteen thousand, two hundred twenty-two".