12400223223 has 4 divisors (see below), whose sum is σ = 16533630968. Its totient is φ = 8266815480.

The previous prime is 12400223191. The next prime is 12400223263. The reversal of 12400223223 is 32232200421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32232200421 = 3 ⋅10744066807.

It is not a de Polignac number, because 12400223223 - 2⁵ = 12400223191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12400223223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12400223263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2066703868 + ... + 2066703873.

It is an arithmetic number, because the mean of its divisors is an integer number (4133407742).

Almost surely, 2^12400223223 is an apocalyptic number.

12400223223 is a deficient number, since it is larger than the sum of its proper divisors (4133407745).

12400223223 is an equidigital number, since it uses as much as digits as its factorization.

12400223223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4133407744.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 12400223223 its reverse (32232200421), we get a palindrome (44632423644).

The spelling of 12400223223 in words is "twelve billion, four hundred million, two hundred twenty-three thousand, two hundred twenty-three".