1223314024440 has 128 divisors (see below), whose sum is σ = 3830517734400. Its totient is φ = 311951185920.

The previous prime is 1223314024403. The next prime is 1223314024441. The reversal of 1223314024440 is 444204133221.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1223314024398 and 1223314024407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223314024441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10737696 + ... + 10851024.

It is an arithmetic number, because the mean of its divisors is an integer number (29925919800).

Almost surely, 2^{1223314024440} is an apocalyptic number.

1223314024440 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 1223314024440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1915258867200).

1223314024440 is an abundant number, since it is smaller than the sum of its proper divisors (2607203709960).

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

1223314024440 is a wasteful number, since it uses less digits than its factorization.

1223314024440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117277 (or 117273 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 1223314024440 its reverse (444204133221), we get a palindrome (1667518157661).

The spelling of 1223314024440 in words is "one trillion, two hundred twenty-three billion, three hundred fourteen million, twenty-four thousand, four hundred forty".