10211009 has 8 divisors (see below), whose sum is σ = 10510080. Its totient is φ = 9914400.

The previous prime is 10210957. The next prime is 10211027. The reversal of 10211009 is 90011201.

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-10211009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10210984 and 10211002.

It is not an unprimeable number, because it can be changed into a prime (10211039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10652 + ... + 11570.

It is an arithmetic number, because the mean of its divisors is an integer number (1313760).

Almost surely, 2^10211009 is an apocalyptic number.

It is an amenable number.

10211009 is a deficient number, since it is larger than the sum of its proper divisors (299071).

10211009 is an equidigital number, since it uses as much as digits as its factorization.

10211009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 10211009 is about 3195.4669455339. The cubic root of 10211009 is about 216.9482841642.

It can be divided in two parts, 102 and 11009, that added together give a palindrome (11111).

The spelling of 10211009 in words is "ten million, two hundred eleven thousand, nine".