12232355497 has 4 divisors (see below), whose sum is σ = 12387195520. Its totient is φ = 12077515476.

The previous prime is 12232355479. The next prime is 12232355519. The reversal of 12232355497 is 79455323221.

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, and also an emirpimes, since its reverse is a distinct semiprime: 79455323221 = 9929 ⋅8002349.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12232355497 is a prime.

It is a super-2 number, since 2×12232355497² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12232356497) 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, 77419893 + ... + 77420050.

It is an arithmetic number, because the mean of its divisors is an integer number (3096798880).

Almost surely, 2^12232355497 is an apocalyptic number.

It is an amenable number.

12232355497 is a deficient number, since it is larger than the sum of its proper divisors (154840023).

12232355497 is an equidigital number, since it uses as much as digits as its factorization.

12232355497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154840022.

The product of its digits is 453600, while the sum is 43.

The spelling of 12232355497 in words is "twelve billion, two hundred thirty-two million, three hundred fifty-five thousand, four hundred ninety-seven".