13224231200 has 36 divisors (see below), whose sum is σ = 32283656370. Its totient is φ = 5289692160.

The previous prime is 13224231191. The next prime is 13224231233. The reversal of 13224231200 is 213242231.

It can be written as a sum of positive squares in 3 ways, for example, as 10562083984 + 2662147216 = 102772^2 + 51596^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8264345 + ... + 8265944.

Almost surely, 2^13224231200 is an apocalyptic number.

13224231200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13224231200 is an abundant number, since it is smaller than the sum of its proper divisors (19059425170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13224231200 is a wasteful number, since it uses less digits than its factorization.

13224231200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16530309 (or 16530296 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 13224231200 its reverse (213242231), we get a palindrome (13437473431).

The spelling of 13224231200 in words is "thirteen billion, two hundred twenty-four million, two hundred thirty-one thousand, two hundred".