12225031300 has 108 divisors (see below), whose sum is σ = 29193843280. Its totient is φ = 4430859840.

The previous prime is 12225031271. The next prime is 12225031309. The reversal of 12225031300 is 313052221.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (12225031309) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 999019 + ... + 1011181.

Almost surely, 2^12225031300 is an apocalyptic number.

12225031300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12225031300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14596921640).

12225031300 is an abundant number, since it is smaller than the sum of its proper divisors (16968811980).

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

12225031300 is a wasteful number, since it uses less digits than its factorization.

12225031300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12242 (or 12212 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 12225031300 its reverse (313052221), we get a palindrome (12538083521).

The spelling of 12225031300 in words is "twelve billion, two hundred twenty-five million, thirty-one thousand, three hundred".