10121002002021 has 8 divisors (see below), whose sum is σ = 13505473720000. Its totient is φ = 6741932476032.

The previous prime is 10121002002011. The next prime is 10121002002053. The reversal of 10121002002021 is 12020020012101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10121002002021 - 2¹³ = 10121001993829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10121002001988 and 10121002002006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121002002011) 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 7 ways as a sum of consecutive naturals, for example, 1350543625 + ... + 1350551118.

It is an arithmetic number, because the mean of its divisors is an integer number (1688184215000).

Almost surely, 2^{10121002002021} is an apocalyptic number.

It is an amenable number.

10121002002021 is a deficient number, since it is larger than the sum of its proper divisors (3384471717979).

10121002002021 is a wasteful number, since it uses less digits than its factorization.

10121002002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2701095995.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10121002002021 its reverse (12020020012101), we get a palindrome (22141022014122).

The spelling of 10121002002021 in words is "ten trillion, one hundred twenty-one billion, two million, two thousand, twenty-one".