12203044440 has 32 divisors (see below), whose sum is σ = 36609133680. Its totient is φ = 3254145152.

The previous prime is 12203044387. The next prime is 12203044453. The reversal of 12203044440 is 4444030221.

It is a happy number.

It is a super-2 number, since 2×12203044440² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 12203044440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50845899 + ... + 50846138.

Almost surely, 2^12203044440 is an apocalyptic number.

12203044440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12203044440 is an abundant number, since it is smaller than the sum of its proper divisors (24406089240).

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

12203044440 is a wasteful number, since it uses less digits than its factorization.

12203044440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101692051 (or 101692047 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 12203044440 its reverse (4444030221), we get a palindrome (16647074661).

The spelling of 12203044440 in words is "twelve billion, two hundred three million, forty-four thousand, four hundred forty".