12355221336 has 16 divisors (see below), whose sum is σ = 30888053400. Its totient is φ = 4118407104.

The previous prime is 12355221317. The next prime is 12355221341. The reversal of 12355221336 is 63312255321.

It is a junction number, because it is equal to n+sod(n) for n = 12355221297 and 12355221306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257400421 + ... + 257400468.

Almost surely, 2^12355221336 is an apocalyptic number.

It is an amenable number.

12355221336 is an abundant number, since it is smaller than the sum of its proper divisors (18532832064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12355221336 is a wasteful number, since it uses less digits than its factorization.

12355221336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514800898 (or 514800894 counting only the distinct ones).

The product of its digits is 32400, while the sum is 33.

Adding to 12355221336 its reverse (63312255321), we get a palindrome (75667476657).

The spelling of 12355221336 in words is "twelve billion, three hundred fifty-five million, two hundred twenty-one thousand, three hundred thirty-six".