12211102309 has 4 divisors (see below), whose sum is σ = 13955545504. Its totient is φ = 10466659116.

The previous prime is 12211102301. The next prime is 12211102357. The reversal of 12211102309 is 90320111221.

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 12211102309 - 2³ = 12211102301 is a prime.

It is a super-2 number, since 2×12211102309² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12211102309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211102301) 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 3 ways as a sum of consecutive naturals, for example, 872221587 + ... + 872221600.

It is an arithmetic number, because the mean of its divisors is an integer number (3488886376).

Almost surely, 2^12211102309 is an apocalyptic number.

It is an amenable number.

12211102309 is a deficient number, since it is larger than the sum of its proper divisors (1744443195).

12211102309 is an equidigital number, since it uses as much as digits as its factorization.

12211102309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744443194.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 12211102309 in words is "twelve billion, two hundred eleven million, one hundred two thousand, three hundred nine".