12400223224 has 8 divisors (see below), whose sum is σ = 23250418560. Its totient is φ = 6200111608.

The previous prime is 12400223191. The next prime is 12400223263. The reversal of 12400223224 is 42232200421.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 12400223195 and 12400223204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775013944 + ... + 775013959.

It is an arithmetic number, because the mean of its divisors is an integer number (2906302320).

Almost surely, 2^12400223224 is an apocalyptic number.

It is an amenable number.

12400223224 is a deficient number, since it is larger than the sum of its proper divisors (10850195336).

12400223224 is a wasteful number, since it uses less digits than its factorization.

12400223224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550027909 (or 1550027905 counting only the distinct ones).

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

Adding to 12400223224 its reverse (42232200421), we get a palindrome (54632423645).

The spelling of 12400223224 in words is "twelve billion, four hundred million, two hundred twenty-three thousand, two hundred twenty-four".