12212211203 has 4 divisors (see below), whose sum is σ = 12394483080. Its totient is φ = 12029939328.

The previous prime is 12212211127. The next prime is 12212211223. The reversal of 12212211203 is 30211221221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12212211203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12212211223) 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 3 ways as a sum of consecutive naturals, for example, 91135838 + ... + 91135971.

It is an arithmetic number, because the mean of its divisors is an integer number (3098620770).

Almost surely, 2^12212211203 is an apocalyptic number.

12212211203 is a deficient number, since it is larger than the sum of its proper divisors (182271877).

12212211203 is an equidigital number, since it uses as much as digits as its factorization.

12212211203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182271876.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12212211203 its reverse (30211221221), we get a palindrome (42423432424).

The spelling of 12212211203 in words is "twelve billion, two hundred twelve million, two hundred eleven thousand, two hundred three".