12213123221003 has 16 divisors (see below), whose sum is σ = 12448612116864. Its totient is φ = 11979280019520.

The previous prime is 12213123220979. The next prime is 12213123221069. The reversal of 12213123221003 is 30012232131221.

It is a cyclic number.

It is not a de Polignac number, because 12213123221003 - 2³⁶ = 12144403744267 is a prime.

It is a super-2 number, since 2×12213123221003² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12213123221003.

It is not an unprimeable number, because it can be changed into a prime (12213123227003) 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 15 ways as a sum of consecutive naturals, for example, 19666751 + ... + 20278247.

It is an arithmetic number, because the mean of its divisors is an integer number (778038257304).

Almost surely, 2^{12213123221003} is an apocalyptic number.

12213123221003 is a deficient number, since it is larger than the sum of its proper divisors (235488895861).

12213123221003 is an equidigital number, since it uses as much as digits as its factorization.

12213123221003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612842.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12213123221003 its reverse (30012232131221), we get a palindrome (42225355352224).

The spelling of 12213123221003 in words is "twelve trillion, two hundred thirteen billion, one hundred twenty-three million, two hundred twenty-one thousand, three".