12102222 has 32 divisors (see below), whose sum is σ = 27319680. Its totient is φ = 3540320.

The previous prime is 12102199. The next prime is 12102239. The reversal of 12102222 is 22220121.

12102222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

12102222 is a modest number, since divided by 2222 gives 1210 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 12102198 and 12102207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1248 + ... + 5075.

It is an arithmetic number, because the mean of its divisors is an integer number (853740).

Almost surely, 2^12102222 is an apocalyptic number.

12102222 is an abundant number, since it is smaller than the sum of its proper divisors (15217458).

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

12102222 is a wasteful number, since it uses less digits than its factorization.

12102222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6368.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 12102222 is about 3478.8248015673. The cubic root of 12102222 is about 229.5910945042.

Adding to 12102222 its reverse (22220121), we get a palindrome (34322343).

The spelling of 12102222 in words is "twelve million, one hundred two thousand, two hundred twenty-two".