12210222011212 has 24 divisors (see below), whose sum is σ = 22537589480000. Its totient is φ = 5772198595536.

The previous prime is 12210222011209. The next prime is 12210222011213. The reversal of 12210222011212 is 21211022201221.

12210222011212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 12210222011212.

It is not an unprimeable number, because it can be changed into a prime (12210222011213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160944858 + ... + 161020705.

Almost surely, 2^{12210222011212} is an apocalyptic number.

It is an amenable number.

12210222011212 is a deficient number, since it is larger than the sum of its proper divisors (10327367468788).

12210222011212 is a wasteful number, since it uses less digits than its factorization.

12210222011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321966085 (or 321966083 counting only the distinct ones).

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

Adding to 12210222011212 its reverse (21211022201221), we get a palindrome (33421244212433).

The spelling of 12210222011212 in words is "twelve trillion, two hundred ten billion, two hundred twenty-two million, eleven thousand, two hundred twelve".