12091209213 has 8 divisors (see below), whose sum is σ = 16128358848. Its totient is φ = 8057432864.

The previous prime is 12091209167. The next prime is 12091209233. The reversal of 12091209213 is 31290219021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12091209213 - 2⁸ = 12091208957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12091209233) 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 7 ways as a sum of consecutive naturals, for example, 834945 + ... + 849302.

It is an arithmetic number, because the mean of its divisors is an integer number (2016044856).

Almost surely, 2^12091209213 is an apocalyptic number.

It is an amenable number.

12091209213 is a deficient number, since it is larger than the sum of its proper divisors (4037149635).

12091209213 is a wasteful number, since it uses less digits than its factorization.

12091209213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686643.

The product of its (nonzero) digits is 1944, while the sum is 30.

The spelling of 12091209213 in words is "twelve billion, ninety-one million, two hundred nine thousand, two hundred thirteen".