12221042463 has 24 divisors (see below), whose sum is σ = 20264910848. Its totient is φ = 6952128912.

The previous prime is 12221042447. The next prime is 12221042567. The reversal of 12221042463 is 36424012221.

12221042463 is a `hidden beast` number, since 1 + 22 + 210 + 424 + 6 + 3 = 666.

It is not a de Polignac number, because 12221042463 - 2⁴ = 12221042447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221042443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 420895 + ... + 448992.

Almost surely, 2^12221042463 is an apocalyptic number.

12221042463 is a deficient number, since it is larger than the sum of its proper divisors (8043868385).

12221042463 is a wasteful number, since it uses less digits than its factorization.

12221042463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870123 (or 870120 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 12221042463 its reverse (36424012221), we get a palindrome (48645054684).

The spelling of 12221042463 in words is "twelve billion, two hundred twenty-one million, forty-two thousand, four hundred sixty-three".