12213310042321 has 12 divisors (see below), whose sum is σ = 12664617065100. Its totient is φ = 11777584544768.

The previous prime is 12213310042301. The next prime is 12213310042327. The reversal of 12213310042321 is 12324001331221.

It can be written as a sum of positive squares in 6 ways, for example, as 1350755328400 + 10862554713921 = 1162220^2 + 3295839^2 .

It is not a de Polignac number, because 12213310042321 - 2⁵ = 12213310042289 is a prime.

It is a super-2 number, since 2×12213310042321² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12213310042327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8295136 + ... + 9655873.

It is an arithmetic number, because the mean of its divisors is an integer number (1055384755425).

Almost surely, 2^{12213310042321} is an apocalyptic number.

It is an amenable number.

12213310042321 is a deficient number, since it is larger than the sum of its proper divisors (451307022779).

12213310042321 is an equidigital number, since it uses as much as digits as its factorization.

12213310042321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17951876 (or 17951847 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 12213310042321 its reverse (12324001331221), we get a palindrome (24537311373542).

The spelling of 12213310042321 in words is "twelve trillion, two hundred thirteen billion, three hundred ten million, forty-two thousand, three hundred twenty-one".