12265220543 has 8 divisors (see below), whose sum is σ = 12282964848. Its totient is φ = 12247491904.

The previous prime is 12265220519. The next prime is 12265220567. The reversal of 12265220543 is 34502256221.

It is an interprime number because it is at equal distance from previous prime (12265220519) and next prime (12265220567).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12265220543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12265220573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2727605 + ... + 2732097.

It is an arithmetic number, because the mean of its divisors is an integer number (1535370606).

Almost surely, 2^12265220543 is an apocalyptic number.

12265220543 is a deficient number, since it is larger than the sum of its proper divisors (17744305).

12265220543 is a wasteful number, since it uses less digits than its factorization.

12265220543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7833.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 12265220543 its reverse (34502256221), we get a palindrome (46767476764).

The spelling of 12265220543 in words is "twelve billion, two hundred sixty-five million, two hundred twenty thousand, five hundred forty-three".