12213821603 has 2 divisors, whose sum is σ = 12213821604. Its totient is φ = 12213821602.

The previous prime is 12213821597. The next prime is 12213821617. The reversal of 12213821603 is 30612831221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12213821603 - 2³⁰ = 11140079779 is a prime.

It is not a weakly prime, because it can be changed into another prime (12213821303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106910801 + 6106910802.

It is an arithmetic number, because the mean of its divisors is an integer number (6106910802).

Almost surely, 2^12213821603 is an apocalyptic number.

12213821603 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213821603 is an equidigital number, since it uses as much as digits as its factorization.

12213821603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 12213821603 in words is "twelve billion, two hundred thirteen million, eight hundred twenty-one thousand, six hundred three".