12212101211212 has 12 divisors (see below), whose sum is σ = 24424202422480. Its totient is φ = 5233757661936.

The previous prime is 12212101211197. The next prime is 12212101211213. The reversal of 12212101211212 is 21211210121221.

It is a happy number.

12212101211212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

12212101211212 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 12212101211212.

It is not an unprimeable number, because it can be changed into a prime (12212101211213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218073235887 + ... + 218073235942.

Almost surely, 2^{12212101211212} is an apocalyptic number.

It is an amenable number.

12212101211212 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.

12212101211212 is a wasteful number, since it uses less digits than its factorization.

12212101211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436146471840 (or 436146471838 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12212101211212 its reverse (21211210121221), we get a palindrome (33423311332433).

The spelling of 12212101211212 in words is "twelve trillion, two hundred twelve billion, one hundred one million, two hundred eleven thousand, two hundred twelve".