1344221003320 has 128 divisors (see below), whose sum is σ = 3328477064640. Its totient is φ = 485514731520.

The previous prime is 1344221003311. The next prime is 1344221003353. The reversal of 1344221003320 is 233001224431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9215355 + ... + 9360085.

Almost surely, 2^{1344221003320} is an apocalyptic number.

1344221003320 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 1344221003320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1664238532320).

1344221003320 is an abundant number, since it is smaller than the sum of its proper divisors (1984256061320).

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

1344221003320 is a wasteful number, since it uses less digits than its factorization.

1344221003320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145145 (or 145141 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 1344221003320 its reverse (233001224431), we get a palindrome (1577222227751).

The spelling of 1344221003320 in words is "one trillion, three hundred forty-four billion, two hundred twenty-one million, three thousand, three hundred twenty".