1021330100120 has 64 divisors (see below), whose sum is σ = 2507221153440. Its totient is φ = 371345356800.

The previous prime is 1021330100113. The next prime is 1021330100129. The reversal of 1021330100120 is 210010331201.

It is a super-2 number, since 2×1021330100120² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021330100095 and 1021330100104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021330100129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3399200 + ... + 3687440.

Almost surely, 2^{1021330100120} is an apocalyptic number.

1021330100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021330100120 is an abundant number, since it is smaller than the sum of its proper divisors (1485891053320).

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

1021330100120 is a wasteful number, since it uses less digits than its factorization.

1021330100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296316 (or 296312 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 1021330100120 its reverse (210010331201), we get a palindrome (1231340431321).

The spelling of 1021330100120 in words is "one trillion, twenty-one billion, three hundred thirty million, one hundred thousand, one hundred twenty".