1021201330000 has 100 divisors (see below), whose sum is σ = 2491307251488. Its totient is φ = 405361840000.

The previous prime is 1021201329931. The next prime is 1021201330001. The reversal of 1021201330000 is 331021201.

It is a tau number, because it is divible by the number of its divisors (100).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021201330001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 920229 + ... + 1699771.

Almost surely, 2^{1021201330000} is an apocalyptic number.

1021201330000 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 1021201330000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1245653625744).

1021201330000 is an abundant number, since it is smaller than the sum of its proper divisors (1470105921488).

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

1021201330000 is an equidigital number, since it uses as much as digits as its factorization.

1021201330000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779702 (or 779681 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 1021201330000 its reverse (331021201), we get a palindrome (1021532351201).

The spelling of 1021201330000 in words is "one trillion, twenty-one billion, two hundred one million, three hundred thirty thousand".