12221232203 has 2 divisors, whose sum is σ = 12221232204. Its totient is φ = 12221232202.

The previous prime is 12221232197. The next prime is 12221232223. The reversal of 12221232203 is 30223212221.

It is a happy number.

It is an a-pointer prime, because the next prime (12221232223) can be obtained adding 12221232203 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12221232203 - 2¹⁸ = 12220970059 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12221232223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110616101 + 6110616102.

It is an arithmetic number, because the mean of its divisors is an integer number (6110616102).

Almost surely, 2^12221232203 is an apocalyptic number.

12221232203 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221232203 is an equidigital number, since it uses as much as digits as its factorization.

12221232203 is an evil number, because the sum of its binary digits is even.

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

Adding to 12221232203 its reverse (30223212221), we get a palindrome (42444444424).

The spelling of 12221232203 in words is "twelve billion, two hundred twenty-one million, two hundred thirty-two thousand, two hundred three".