12213244543 has 2 divisors, whose sum is σ = 12213244544. Its totient is φ = 12213244542.

The previous prime is 12213244531. The next prime is 12213244573. The reversal of 12213244543 is 34544231221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12213244543 - 2¹³ = 12213236351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12213244573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106622271 + 6106622272.

It is an arithmetic number, because the mean of its divisors is an integer number (6106622272).

Almost surely, 2^12213244543 is an apocalyptic number.

12213244543 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213244543 is an equidigital number, since it uses as much as digits as its factorization.

12213244543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 31.

Adding to 12213244543 its reverse (34544231221), we get a palindrome (46757475764).

The spelling of 12213244543 in words is "twelve billion, two hundred thirteen million, two hundred forty-four thousand, five hundred forty-three".