1212210020003 has 2 divisors, whose sum is σ = 1212210020004. Its totient is φ = 1212210020002.

The previous prime is 1212210019981. The next prime is 1212210020033. The reversal of 1212210020003 is 3000200122121.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3000200122121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1212210020003 - 2²⁰ = 1212208971427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1212210020003.

It is not a weakly prime, because it can be changed into another prime (1212210020033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606105010001 + 606105010002.

It is an arithmetic number, because the mean of its divisors is an integer number (606105010002).

Almost surely, 2^{1212210020003} is an apocalyptic number.

1212210020003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212210020003 is an equidigital number, since it uses as much as digits as its factorization.

1212210020003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1212210020003 its reverse (3000200122121), we get a palindrome (4212410142124).

The spelling of 1212210020003 in words is "one trillion, two hundred twelve billion, two hundred ten million, twenty thousand, three".