12134212112 has 20 divisors (see below), whose sum is σ = 25647312336. Its totient is φ = 5515550880.

The previous prime is 12134212109. The next prime is 12134212121. The reversal of 12134212112 is 21121243121.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34472018 + ... + 34472369.

Almost surely, 2^12134212112 is an apocalyptic number.

It is an amenable number.

12134212112 is an abundant number, since it is smaller than the sum of its proper divisors (13513100224).

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

12134212112 is a wasteful number, since it uses less digits than its factorization.

12134212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68944406 (or 68944400 counting only the distinct ones).

The product of its digits is 192, while the sum is 20.

Adding to 12134212112 its reverse (21121243121), we get a palindrome (33255455233).

The spelling of 12134212112 in words is "twelve billion, one hundred thirty-four million, two hundred twelve thousand, one hundred twelve".