1223144344320 has 216 divisors, whose sum is σ = 3950900997456. Its totient is φ = 322498953216.

The previous prime is 1223144344267. The next prime is 1223144344333. The reversal of 1223144344320 is 234434413221.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30396534 + ... + 30436746.

Almost surely, 2^{1223144344320} is an apocalyptic number.

1223144344320 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 1223144344320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1975450498728).

1223144344320 is an abundant number, since it is smaller than the sum of its proper divisors (2727756653136).

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

1223144344320 is an frugal number, since it uses more digits than its factorization.

1223144344320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40415 (or 40312 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 1223144344320 its reverse (234434413221), we get a palindrome (1457578757541).

The spelling of 1223144344320 in words is "one trillion, two hundred twenty-three billion, one hundred forty-four million, three hundred forty-four thousand, three hundred twenty".