12212122001212 has 12 divisors (see below), whose sum is σ = 24424244002480. Its totient is φ = 5233766571936.

The previous prime is 12212122001207. The next prime is 12212122001263. The reversal of 12212122001212 is 21210022121221.

12212122001212 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 12212122001212.

It is a congruent number.

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, 218073607137 + ... + 218073607192.

Almost surely, 2^{12212122001212} is an apocalyptic number.

It is an amenable number.

12212122001212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12212122001212 is a wasteful number, since it uses less digits than its factorization.

12212122001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436147214340 (or 436147214338 counting only the distinct ones).

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

Adding to 12212122001212 its reverse (21210022121221), we get a palindrome (33422144122433).

The spelling of 12212122001212 in words is "twelve trillion, two hundred twelve billion, one hundred twenty-two million, one thousand, two hundred twelve".