12232209999 has 4 divisors (see below), whose sum is σ = 16309613336. Its totient is φ = 8154806664.

The previous prime is 12232209943. The next prime is 12232210007. The reversal of 12232209999 is 99990223221.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12232209999 - 2⁹ = 12232209487 is a prime.

It is a super-2 number, since 2×12232209999² (a number of 21 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 (12232209499) 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, 2038701664 + ... + 2038701669.

It is an arithmetic number, because the mean of its divisors is an integer number (4077403334).

Almost surely, 2^12232209999 is an apocalyptic number.

12232209999 is a deficient number, since it is larger than the sum of its proper divisors (4077403337).

12232209999 is an equidigital number, since it uses as much as digits as its factorization.

12232209999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4077403336.

The product of its (nonzero) digits is 314928, while the sum is 48.

The spelling of 12232209999 in words is "twelve billion, two hundred thirty-two million, two hundred nine thousand, nine hundred ninety-nine".