12120002112 has 56 divisors (see below), whose sum is σ = 33755279200. Its totient is φ = 3827367936.

The previous prime is 12120002107. The next prime is 12120002123. The reversal of 12120002112 is 21120002121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1657537 + ... + 1664832.

Almost surely, 2^12120002112 is an apocalyptic number.

12120002112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12120002112 is an abundant number, since it is smaller than the sum of its proper divisors (21635277088).

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

12120002112 is a wasteful number, since it uses less digits than its factorization.

12120002112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3322403 (or 3322393 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12120002112 its reverse (21120002121), we get a palindrome (33240004233).

Subtracting 12120002112 from its reverse (21120002121), we obtain a palindrome (9000000009).

The spelling of 12120002112 in words is "twelve billion, one hundred twenty million, two thousand, one hundred twelve".