12213222342243 has 32 divisors (see below), whose sum is σ = 17665010603520. Its totient is φ = 7460951143680.

The previous prime is 12213222342229. The next prime is 12213222342257. The reversal of 12213222342243 is 34224322231221.

It is an interprime number because it is at equal distance from previous prime (12213222342229) and next prime (12213222342257).

It is not a de Polignac number, because 12213222342243 - 2⁶ = 12213222342179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12213222340243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52049223 + ... + 52283343.

It is an arithmetic number, because the mean of its divisors is an integer number (552031581360).

Almost surely, 2^{12213222342243} is an apocalyptic number.

12213222342243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12213222342243 is a deficient number, since it is larger than the sum of its proper divisors (5451788261277).

12213222342243 is a wasteful number, since it uses less digits than its factorization.

12213222342243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243899.

The product of its digits is 55296, while the sum is 33.

Adding to 12213222342243 its reverse (34224322231221), we get a palindrome (46437544573464).

The spelling of 12213222342243 in words is "twelve trillion, two hundred thirteen billion, two hundred twenty-two million, three hundred forty-two thousand, two hundred forty-three".