12212322203 has 4 divisors (see below), whose sum is σ = 12366908640. Its totient is φ = 12057735768.

The previous prime is 12212322193. The next prime is 12212322217. The reversal of 12212322203 is 30222321221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30222321221 = 577 ⋅52378373.

It is a cyclic number.

It is not a de Polignac number, because 12212322203 - 2⁶ = 12212322139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12212322223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77293100 + ... + 77293257.

It is an arithmetic number, because the mean of its divisors is an integer number (3091727160).

Almost surely, 2^12212322203 is an apocalyptic number.

12212322203 is a deficient number, since it is larger than the sum of its proper divisors (154586437).

12212322203 is an equidigital number, since it uses as much as digits as its factorization.

12212322203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154586436.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12212322203 its reverse (30222321221), we get a palindrome (42434643424).

The spelling of 12212322203 in words is "twelve billion, two hundred twelve million, three hundred twenty-two thousand, two hundred three".