1212211100003 has 2 divisors, whose sum is σ = 1212211100004. Its totient is φ = 1212211100002.

The previous prime is 1212211099993. The next prime is 1212211100017. The reversal of 1212211100003 is 3000011122121.

It is an a-pointer prime, because the next prime (1212211100017) can be obtained adding 1212211100003 to its sum of digits (14).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1212211100003 - 2⁴⁰ = 112699472227 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1212211180003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606105550001 + 606105550002.

It is an arithmetic number, because the mean of its divisors is an integer number (606105550002).

Almost surely, 2^{1212211100003} is an apocalyptic number.

1212211100003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212211100003 is an equidigital number, since it uses as much as digits as its factorization.

1212211100003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1212211100003 its reverse (3000011122121), we get a palindrome (4212222222124).

The spelling of 1212211100003 in words is "one trillion, two hundred twelve billion, two hundred eleven million, one hundred thousand, three".