12365220233420 has 48 divisors (see below), whose sum is σ = 26819328705120. Its totient is φ = 4786289404416.

The previous prime is 12365220233393. The next prime is 12365220233501. The reversal of 12365220233420 is 2433202256321.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 79821950 + ... + 79976709.

It is an arithmetic number, because the mean of its divisors is an integer number (558736014690).

Almost surely, 2^{12365220233420} is an apocalyptic number.

12365220233420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12365220233420 is an abundant number, since it is smaller than the sum of its proper divisors (14454108471700).

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

12365220233420 is a wasteful number, since it uses less digits than its factorization.

12365220233420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159798794 (or 159798792 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 12365220233420 its reverse (2433202256321), we get a palindrome (14798422489741).

The spelling of 12365220233420 in words is "twelve trillion, three hundred sixty-five billion, two hundred twenty million, two hundred thirty-three thousand, four hundred twenty".