10020121210120 has 128 divisors (see below), whose sum is σ = 26492397984000. Its totient is φ = 3338831010816.

The previous prime is 10020121210049. The next prime is 10020121210123. The reversal of 10020121210120 is 2101212102001.

It is a self number, because there is not a number n which added to its sum of digits gives 10020121210120.

It is not an unprimeable number, because it can be changed into a prime (10020121210123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8600206 + ... + 9695554.

It is an arithmetic number, because the mean of its divisors is an integer number (206971859250).

Almost surely, 2^{10020121210120} is an apocalyptic number.

10020121210120 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 10020121210120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13246198992000).

10020121210120 is an abundant number, since it is smaller than the sum of its proper divisors (16472276773880).

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

10020121210120 is a wasteful number, since it uses less digits than its factorization.

10020121210120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096287 (or 1096283 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10020121210120 its reverse (2101212102001), we get a palindrome (12121333312121).

The spelling of 10020121210120 in words is "ten trillion, twenty billion, one hundred twenty-one million, two hundred ten thousand, one hundred twenty".