12202002009 has 12 divisors (see below), whose sum is σ = 17957664036. Its totient is φ = 7981183392.

The previous prime is 12202001953. The next prime is 12202002013. The reversal of 12202002009 is 90020020221.

It can be written as a sum of positive squares in 2 ways, for example, as 10224243225 + 1977758784 = 101115^2 + 44472^2 .

It is not a de Polignac number, because 12202002009 - 2⁷ = 12202001881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12202001982 and 12202002000.

It is not an unprimeable number, because it can be changed into a prime (12202002209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12789882 + ... + 12790835.

It is an arithmetic number, because the mean of its divisors is an integer number (1496472003).

Almost surely, 2^12202002009 is an apocalyptic number.

It is an amenable number.

12202002009 is a deficient number, since it is larger than the sum of its proper divisors (5755662027).

12202002009 is a wasteful number, since it uses less digits than its factorization.

12202002009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25580776 (or 25580773 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The spelling of 12202002009 in words is "twelve billion, two hundred two million, two thousand, nine".