12225965543 has 16 divisors (see below), whose sum is σ = 13408851456. Its totient is φ = 11055121440.

The previous prime is 12225965527. The next prime is 12225965623. The reversal of 12225965543 is 34556952221.

It is a happy number.

It is not a de Polignac number, because 12225965543 - 2⁴ = 12225965527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12225965494 and 12225965503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12225965243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2100305 + ... + 2106117.

It is an arithmetic number, because the mean of its divisors is an integer number (838053216).

Almost surely, 2^12225965543 is an apocalyptic number.

12225965543 is a deficient number, since it is larger than the sum of its proper divisors (1182885913).

12225965543 is a wasteful number, since it uses less digits than its factorization.

12225965543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6814.

The product of its digits is 648000, while the sum is 44.

The spelling of 12225965543 in words is "twelve billion, two hundred twenty-five million, nine hundred sixty-five thousand, five hundred forty-three".