12224215231212 has 48 divisors (see below), whose sum is σ = 28587870671360. Its totient is φ = 4065497206848.

The previous prime is 12224215231199. The next prime is 12224215231229. The reversal of 12224215231212 is 21213251242221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12224215231212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53328798 + ... + 53557530.

Almost surely, 2^{12224215231212} is an apocalyptic number.

12224215231212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12224215231212 is an abundant number, since it is smaller than the sum of its proper divisors (16363655440148).

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

12224215231212 is a wasteful number, since it uses less digits than its factorization.

12224215231212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238822 (or 238820 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

Adding to 12224215231212 its reverse (21213251242221), we get a palindrome (33437466473433).

The spelling of 12224215231212 in words is "twelve trillion, two hundred twenty-four billion, two hundred fifteen million, two hundred thirty-one thousand, two hundred twelve".