12212113112 has 16 divisors (see below), whose sum is σ = 23285809800. Its totient is φ = 6002563840.

The previous prime is 12212113091. The next prime is 12212113139. The reversal of 12212113112 is 21131121221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12936089 + ... + 12937032.

Almost surely, 2^12212113112 is an apocalyptic number.

It is an amenable number.

12212113112 is a deficient number, since it is larger than the sum of its proper divisors (11073696688).

12212113112 is a wasteful number, since it uses less digits than its factorization.

12212113112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25873186 (or 25873182 counting only the distinct ones).

The product of its digits is 48, while the sum is 17.

Adding to 12212113112 its reverse (21131121221), we get a palindrome (33343234333).

The spelling of 12212113112 in words is "twelve billion, two hundred twelve million, one hundred thirteen thousand, one hundred twelve".