12221213203 has 2 divisors, whose sum is σ = 12221213204. Its totient is φ = 12221213202.

The previous prime is 12221213201. The next prime is 12221213209. The reversal of 12221213203 is 30231212221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12221213203 - 2¹ = 12221213201 is a prime.

Together with 12221213201, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12221213201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110606601 + 6110606602.

It is an arithmetic number, because the mean of its divisors is an integer number (6110606602).

Almost surely, 2^12221213203 is an apocalyptic number.

12221213203 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221213203 is an equidigital number, since it uses as much as digits as its factorization.

12221213203 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 12221213203 its reverse (30231212221), we get a palindrome (42452425424).

The spelling of 12221213203 in words is "twelve billion, two hundred twenty-one million, two hundred thirteen thousand, two hundred three".