12102210120212 has 6 divisors (see below), whose sum is σ = 21178867710378. Its totient is φ = 6051105060104.

The previous prime is 12102210120211. The next prime is 12102210120251. The reversal of 12102210120212 is 21202101220121.

It can be written as a sum of positive squares in only one way, i.e., 9942380147716 + 2159829972496 = 3153154^2 + 1469636^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102210120211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1512776265023 + ... + 1512776265030.

It is an arithmetic number, because the mean of its divisors is an integer number (3529811285063).

Almost surely, 2^{12102210120212} is an apocalyptic number.

It is an amenable number.

12102210120212 is a deficient number, since it is larger than the sum of its proper divisors (9076657590166).

12102210120212 is a wasteful number, since it uses less digits than its factorization.

12102210120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025552530057 (or 3025552530055 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12102210120212 its reverse (21202101220121), we get a palindrome (33304311340333).

The spelling of 12102210120212 in words is "twelve trillion, one hundred two billion, two hundred ten million, one hundred twenty thousand, two hundred twelve".