12212120012212 has 24 divisors (see below), whose sum is σ = 22118417281800. Its totient is φ = 5892767817216.

The previous prime is 12212120012179. The next prime is 12212120012297. The reversal of 12212120012212 is 21221002121221.

12212120012212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 160363406116 + 12051756606096 = 400454^2 + 3471564^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12212120012212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24199137 + ... + 24698632.

It is an arithmetic number, because the mean of its divisors is an integer number (921600720075).

Almost surely, 2^{12212120012212} is an apocalyptic number.

It is an amenable number.

12212120012212 is a deficient number, since it is larger than the sum of its proper divisors (9906297269588).

12212120012212 is a wasteful number, since it uses less digits than its factorization.

12212120012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48899955 (or 48899953 counting only the distinct ones).

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

Adding to 12212120012212 its reverse (21221002121221), we get a palindrome (33433122133433).

The spelling of 12212120012212 in words is "twelve trillion, two hundred twelve billion, one hundred twenty million, twelve thousand, two hundred twelve".