10012209 has 4 divisors (see below), whose sum is σ = 13349616. Its totient is φ = 6674804.

The previous prime is 10012193. The next prime is 10012213. The reversal of 10012209 is 90221001.

It is a happy number.

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 10012209 - 2⁴ = 10012193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10012229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1668699 + ... + 1668704.

It is an arithmetic number, because the mean of its divisors is an integer number (3337404).

Almost surely, 2^10012209 is an apocalyptic number.

It is an amenable number.

10012209 is a deficient number, since it is larger than the sum of its proper divisors (3337407).

10012209 is an equidigital number, since it uses as much as digits as its factorization.

10012209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3337406.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 10012209 is about 3164.2074837153. The cubic root of 10012209 is about 215.5311116557.

The spelling of 10012209 in words is "ten million, twelve thousand, two hundred nine".