10021021109 has 8 divisors (see below), whose sum is σ = 11198658240. Its totient is φ = 8887823200.

The previous prime is 10021021081. The next prime is 10021021123. The reversal of 10021021109 is 90112012001.

10021021109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 10021021109 - 2¹⁶ = 10020955573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021021169) 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, 11109329 + ... + 11110230.

It is an arithmetic number, because the mean of its divisors is an integer number (1399832280).

Almost surely, 2^10021021109 is an apocalyptic number.

It is an amenable number.

10021021109 is a deficient number, since it is larger than the sum of its proper divisors (1177637131).

10021021109 is a wasteful number, since it uses less digits than its factorization.

10021021109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22219611.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 10021021109 in words is "ten billion, twenty-one million, twenty-one thousand, one hundred nine".