12204344100 has 144 divisors (see below), whose sum is σ = 40029174080. Its totient is φ = 2846016000.

The previous prime is 12204344099. The next prime is 12204344101. The reversal of 12204344100 is 144340221.

It is an interprime number because it is at equal distance from previous prime (12204344099) and next prime (12204344101).

It is a super-2 number, since 2×12204344100² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12204344101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8251 + ... + 156450.

Almost surely, 2^12204344100 is an apocalyptic number.

12204344100 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 12204344100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20014587040).

12204344100 is an abundant number, since it is smaller than the sum of its proper divisors (27824829980).

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

12204344100 is a wasteful number, since it uses less digits than its factorization.

12204344100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164750 (or 164743 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12204344100 its reverse (144340221), we get a palindrome (12348684321).

The spelling of 12204344100 in words is "twelve billion, two hundred four million, three hundred forty-four thousand, one hundred".