12220024423 has 4 divisors (see below), whose sum is σ = 12231456760. Its totient is φ = 12208592088.

The previous prime is 12220024357. The next prime is 12220024459. The reversal of 12220024423 is 32442002221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12220024423 - 2¹⁷ = 12219893351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12220024394 and 12220024403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220024723) 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 3 ways as a sum of consecutive naturals, for example, 5714565 + ... + 5716702.

It is an arithmetic number, because the mean of its divisors is an integer number (3057864190).

Almost surely, 2^12220024423 is an apocalyptic number.

12220024423 is a deficient number, since it is larger than the sum of its proper divisors (11432337).

12220024423 is a wasteful number, since it uses less digits than its factorization.

12220024423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11432336.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 12220024423 its reverse (32442002221), we get a palindrome (44662026644).

The spelling of 12220024423 in words is "twelve billion, two hundred twenty million, twenty-four thousand, four hundred twenty-three".