1320221003332 has 96 divisors (see below), whose sum is σ = 2917821763584. Its totient is φ = 507736252800.

The previous prime is 1320221003261. The next prime is 1320221003341. The reversal of 1320221003332 is 2333001220231.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 9799258 + ... + 9933070.

It is an arithmetic number, because the mean of its divisors is an integer number (30393976704).

Almost surely, 2^{1320221003332} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1320221003332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1458910881792).

1320221003332 is an abundant number, since it is smaller than the sum of its proper divisors (1597600760252).

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

1320221003332 is a wasteful number, since it uses less digits than its factorization.

1320221003332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134249 (or 134247 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 1320221003332 its reverse (2333001220231), we get a palindrome (3653222223563).

The spelling of 1320221003332 in words is "one trillion, three hundred twenty billion, two hundred twenty-one million, three thousand, three hundred thirty-two".