10112021021 has 8 divisors (see below), whose sum is σ = 10137363000. Its totient is φ = 10086709248.

The previous prime is 10112020993. The next prime is 10112021041. The reversal of 10112021021 is 12012021101.

10112021021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 89208025 + 10022812996 = 9445^2 + 100114^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10112021021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10112020993 and 10112021011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10112021041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 756605 + ... + 769853.

It is an arithmetic number, because the mean of its divisors is an integer number (1267170375).

Almost surely, 2^10112021021 is an apocalyptic number.

It is an amenable number.

10112021021 is a deficient number, since it is larger than the sum of its proper divisors (25341979).

10112021021 is a wasteful number, since it uses less digits than its factorization.

10112021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15103.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10112021021 its reverse (12012021101), we get a palindrome (22124042122).

The spelling of 10112021021 in words is "ten billion, one hundred twelve million, twenty-one thousand, twenty-one".