12213132112112 has 20 divisors (see below), whose sum is σ = 23664441327480. Its totient is φ = 6106179511488.

The previous prime is 12213132112109. The next prime is 12213132112117. The reversal of 12213132112112 is 21121123131221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213132112117) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 23898287 + ... + 24403982.

It is an arithmetic number, because the mean of its divisors is an integer number (1183222066374).

Almost surely, 2^{12213132112112} is an apocalyptic number.

It is an amenable number.

12213132112112 is a deficient number, since it is larger than the sum of its proper divisors (11451309215368).

12213132112112 is a wasteful number, since it uses less digits than its factorization.

12213132112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48318080 (or 48318074 counting only the distinct ones).

The product of its digits is 288, while the sum is 23.

Adding to 12213132112112 its reverse (21121123131221), we get a palindrome (33334255243333).

The spelling of 12213132112112 in words is "twelve trillion, two hundred thirteen billion, one hundred thirty-two million, one hundred twelve thousand, one hundred twelve".