12213232120012 has 24 divisors (see below), whose sum is σ = 26647051898880. Its totient is φ = 4758402124560.

The previous prime is 12213232120007. The next prime is 12213232120031. The reversal of 12213232120012 is 21002123231221.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19826675212 + ... + 19826675827.

It is an arithmetic number, because the mean of its divisors is an integer number (1110293829120).

Almost surely, 2^{12213232120012} is an apocalyptic number.

It is an amenable number.

12213232120012 is an abundant number, since it is smaller than the sum of its proper divisors (14433819778868).

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

12213232120012 is a wasteful number, since it uses less digits than its factorization.

12213232120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39653351061 (or 39653351059 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12213232120012 its reverse (21002123231221), we get a palindrome (33215355351233).

The spelling of 12213232120012 in words is "twelve trillion, two hundred thirteen billion, two hundred thirty-two million, one hundred twenty thousand, twelve".