12224140400 has 60 divisors (see below), whose sum is σ = 29722415352. Its totient is φ = 4830731520.

The previous prime is 12224140391. The next prime is 12224140403. The reversal of 12224140400 is 404142221.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12224140403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150899 + ... + 217298.

Almost surely, 2^12224140400 is an apocalyptic number.

12224140400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12224140400 is an abundant number, since it is smaller than the sum of its proper divisors (17498274952).

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

12224140400 is a wasteful number, since it uses less digits than its factorization.

12224140400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368298 (or 368287 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 12224140400 its reverse (404142221), we get a palindrome (12628282621).

The spelling of 12224140400 in words is "twelve billion, two hundred twenty-four million, one hundred forty thousand, four hundred".