12210201212 has 24 divisors (see below), whose sum is σ = 23407937280. Its totient is φ = 5526864560.

The previous prime is 12210201197. The next prime is 12210201221. The reversal of 12210201212 is 21210201221.

It is a super-3 number, since 3×12210201212³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 570038 + ... + 591069.

It is an arithmetic number, because the mean of its divisors is an integer number (975330720).

Almost surely, 2^12210201212 is an apocalyptic number.

It is an amenable number.

12210201212 is a deficient number, since it is larger than the sum of its proper divisors (11197736068).

12210201212 is a wasteful number, since it uses less digits than its factorization.

12210201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161361 (or 1161359 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12210201212 its reverse (21210201221), we get a palindrome (33420402433).

Subtracting 12210201212 from its reverse (21210201221), we obtain a palindrome (9000000009).

The spelling of 12210201212 in words is "twelve billion, two hundred ten million, two hundred one thousand, two hundred twelve".