12102212 has 12 divisors (see below), whose sum is σ = 21255696. Its totient is φ = 6029160.

The previous prime is 12102199. The next prime is 12102239. The reversal of 12102212 is 21220121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12102193 and 12102202.

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, 4214 + ... + 6477.

It is an arithmetic number, because the mean of its divisors is an integer number (1771308).

Almost surely, 2^12102212 is an apocalyptic number.

It is an amenable number.

12102212 is a deficient number, since it is larger than the sum of its proper divisors (9153484).

12102212 is a wasteful number, since it uses less digits than its factorization.

12102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10978 (or 10976 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 12102212 is about 3478.8233643001. The cubic root of 12102212 is about 229.5910312675.

Adding to 12102212 its reverse (21220121), we get a palindrome (33322333).

The spelling of 12102212 in words is "twelve million, one hundred two thousand, two hundred twelve".