13221212203 has 2 divisors, whose sum is σ = 13221212204. Its totient is φ = 13221212202.

The previous prime is 13221212161. The next prime is 13221212219. The reversal of 13221212203 is 30221212231.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13221212203 is a prime.

It is a super-2 number, since 2×13221212203² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13221212293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610606101 + 6610606102.

It is an arithmetic number, because the mean of its divisors is an integer number (6610606102).

Almost surely, 2^13221212203 is an apocalyptic number.

13221212203 is a deficient number, since it is larger than the sum of its proper divisors (1).

13221212203 is an equidigital number, since it uses as much as digits as its factorization.

13221212203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13221212203 its reverse (30221212231), we get a palindrome (43442424434).

The spelling of 13221212203 in words is "thirteen billion, two hundred twenty-one million, two hundred twelve thousand, two hundred three".