12122110022212 has 12 divisors (see below), whose sum is σ = 21213718204140. Its totient is φ = 6061047678176.

The previous prime is 12122110022171. The next prime is 12122110022279. The reversal of 12122110022212 is 21222001122121.

It can be written as a sum of positive squares in 2 ways, for example, as 3777487667776 + 8344622354436 = 1943576^2 + 2888706^2 .

It is a super-2 number, since 2×12122110022212² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12122110022212.

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 3 ways as a sum of consecutive naturals, for example, 3830418 + ... + 6238294.

It is an arithmetic number, because the mean of its divisors is an integer number (1767809850345).

Almost surely, 2^{12122110022212} is an apocalyptic number.

It is an amenable number.

12122110022212 is a deficient number, since it is larger than the sum of its proper divisors (9091608181928).

12122110022212 is a wasteful number, since it uses less digits than its factorization.

12122110022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3666470 (or 3666468 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12122110022212 its reverse (21222001122121), we get a palindrome (33344111144333).

The spelling of 12122110022212 in words is "twelve trillion, one hundred twenty-two billion, one hundred ten million, twenty-two thousand, two hundred twelve".