12122212012 has 12 divisors (see below), whose sum is σ = 21215624976. Its totient is φ = 6060604880.

The previous prime is 12122211991. The next prime is 12122212033. The reversal of 12122212012 is 21021222121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12122211991) and next prime (12122212033).

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, 67939 + ... + 169882.

It is an arithmetic number, because the mean of its divisors is an integer number (1767968748).

Almost surely, 2^12122212012 is an apocalyptic number.

It is an amenable number.

12122212012 is a deficient number, since it is larger than the sum of its proper divisors (9093412964).

12122212012 is a wasteful number, since it uses less digits than its factorization.

12122212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250568 (or 250566 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12122212012 its reverse (21021222121), we get a palindrome (33143434133).

The spelling of 12122212012 in words is "twelve billion, one hundred twenty-two million, two hundred twelve thousand, twelve".