10021201009 has 4 divisors (see below), whose sum is σ = 10022166000. Its totient is φ = 10020236020.

The previous prime is 10021200979. The next prime is 10021201013. The reversal of 10021201009 is 90010212001.

10021201009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10021201009 - 2¹¹ = 10021198961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10021200983 and 10021201001.

It is not an unprimeable number, because it can be changed into a prime (10021201049) 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 3 ways as a sum of consecutive naturals, for example, 466747 + ... + 487744.

It is an arithmetic number, because the mean of its divisors is an integer number (2505541500).

Almost surely, 2^10021201009 is an apocalyptic number.

It is an amenable number.

10021201009 is a deficient number, since it is larger than the sum of its proper divisors (964991).

10021201009 is an equidigital number, since it uses as much as digits as its factorization.

10021201009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964990.

The product of its (nonzero) digits is 36, while the sum is 16.

The spelling of 10021201009 in words is "ten billion, twenty-one million, two hundred one thousand, nine".