12112211022009 has 12 divisors (see below), whose sum is σ = 18786286483344. Its totient is φ = 6921263441064.

The previous prime is 12112211022007. The next prime is 12112211022017. The reversal of 12112211022009 is 90022011221121.

It is not a de Polignac number, because 12112211022009 - 2¹ = 12112211022007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12112211022009.

It is not an unprimeable number, because it can be changed into a prime (12112211022007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41197996527 + ... + 41197996820.

It is an arithmetic number, because the mean of its divisors is an integer number (1565523873612).

Almost surely, 2^{12112211022009} is an apocalyptic number.

It is an amenable number.

12112211022009 is a deficient number, since it is larger than the sum of its proper divisors (6674075461335).

12112211022009 is an equidigital number, since it uses as much as digits as its factorization.

12112211022009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82395993364 (or 82395993357 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

The spelling of 12112211022009 in words is "twelve trillion, one hundred twelve billion, two hundred eleven million, twenty-two thousand, nine".