12012112203 has 72 divisors (see below), whose sum is σ = 20333941056. Its totient is φ = 6285988800.

The previous prime is 12012112201. The next prime is 12012112207. The reversal of 12012112203 is 30221121021.

It is not a de Polignac number, because 12012112203 - 2¹ = 12012112201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12012112201) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 3252588 + ... + 3256278.

It is an arithmetic number, because the mean of its divisors is an integer number (282415848).

Almost surely, 2^12012112203 is an apocalyptic number.

12012112203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12012112203 is a deficient number, since it is larger than the sum of its proper divisors (8321828853).

12012112203 is a wasteful number, since it uses less digits than its factorization.

12012112203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3865 (or 3845 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12012112203 its reverse (30221121021), we get a palindrome (42233233224).

The spelling of 12012112203 in words is "twelve billion, twelve million, one hundred twelve thousand, two hundred three".