12232211032309 has 4 divisors (see below), whose sum is σ = 12232219018060. Its totient is φ = 12232203046560.

The previous prime is 12232211032271. The next prime is 12232211032381. The reversal of 12232211032309 is 90323011223221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 8889610587025 + 3342600445284 = 2981545^2 + 1828278^2 .

It is a cyclic number.

It is not a de Polignac number, because 12232211032309 - 2¹¹ = 12232211030261 is a prime.

It is a super-2 number, since 2×12232211032309² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12232211032009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 893094 + ... + 5026135.

It is an arithmetic number, because the mean of its divisors is an integer number (3058054754515).

Almost surely, 2^{12232211032309} is an apocalyptic number.

It is an amenable number.

12232211032309 is a deficient number, since it is larger than the sum of its proper divisors (7985751).

12232211032309 is an equidigital number, since it uses as much as digits as its factorization.

12232211032309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7985750.

The product of its (nonzero) digits is 7776, while the sum is 31.

The spelling of 12232211032309 in words is "twelve trillion, two hundred thirty-two billion, two hundred eleven million, thirty-two thousand, three hundred nine".