12220012323 has 16 divisors (see below), whose sum is σ = 18128449440. Its totient is φ = 8135547552.

The previous prime is 12220012313. The next prime is 12220012333. The reversal of 12220012323 is 32321002221.

It is an interprime number because it is at equal distance from previous prime (12220012313) and next prime (12220012333).

It is not a de Polignac number, because 12220012323 - 2⁸ = 12220012067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12220012296 and 12220012305.

It is not an unprimeable number, because it can be changed into a prime (12220012313) 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, 288936 + ... + 328517.

It is an arithmetic number, because the mean of its divisors is an integer number (1133028090).

Almost surely, 2^12220012323 is an apocalyptic number.

12220012323 is a deficient number, since it is larger than the sum of its proper divisors (5908437117).

12220012323 is an equidigital number, since it uses as much as digits as its factorization.

12220012323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618195 (or 618189 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12220012323 its reverse (32321002221), we get a palindrome (44541014544).

The spelling of 12220012323 in words is "twelve billion, two hundred twenty million, twelve thousand, three hundred twenty-three".