12212112221003 has 4 divisors (see below), whose sum is σ = 12212151740088. Its totient is φ = 12212072701920.

The previous prime is 12212112220963. The next prime is 12212112221009. The reversal of 12212112221003 is 30012221121221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12212112221003 - 2¹⁸ = 12212111958859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12212112221009) 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 in 3 ways as a sum of consecutive naturals, for example, 19292333 + ... + 19915278.

It is an arithmetic number, because the mean of its divisors is an integer number (3053037935022).

Almost surely, 2^{12212112221003} is an apocalyptic number.

12212112221003 is a deficient number, since it is larger than the sum of its proper divisors (39519085).

12212112221003 is an equidigital number, since it uses as much as digits as its factorization.

12212112221003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39519084.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 12212112221003 its reverse (30012221121221), we get a palindrome (42224333342224).

The spelling of 12212112221003 in words is "twelve trillion, two hundred twelve billion, one hundred twelve million, two hundred twenty-one thousand, three".