12223209991 has 8 divisors (see below), whose sum is σ = 12268321760. Its totient is φ = 12178173312.

The previous prime is 12223209961. The next prime is 12223210019. The reversal of 12223209991 is 19990232221.

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 12223209991 - 2¹⁷ = 12223078919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223209961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318451 + ... + 354763.

It is an arithmetic number, because the mean of its divisors is an integer number (1533540220).

Almost surely, 2^12223209991 is an apocalyptic number.

12223209991 is a deficient number, since it is larger than the sum of its proper divisors (45111769).

12223209991 is an equidigital number, since it uses as much as digits as its factorization.

12223209991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37545.

The product of its (nonzero) digits is 34992, while the sum is 40.

The spelling of 12223209991 in words is "twelve billion, two hundred twenty-three million, two hundred nine thousand, nine hundred ninety-one".