12205300555 has 32 divisors (see below), whose sum is σ = 17101532160. Its totient is φ = 8189596800.

The previous prime is 12205300493. The next prime is 12205300607. The reversal of 12205300555 is 55500350221.

It is not a de Polignac number, because 12205300555 - 2¹⁹ = 12204776267 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 336861 + ... + 371329.

It is an arithmetic number, because the mean of its divisors is an integer number (534422880).

Almost surely, 2^12205300555 is an apocalyptic number.

12205300555 is a deficient number, since it is larger than the sum of its proper divisors (4896231605).

12205300555 is a wasteful number, since it uses less digits than its factorization.

12205300555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34699.

The product of its (nonzero) digits is 7500, while the sum is 28.

Adding to 12205300555 its reverse (55500350221), we get a palindrome (67705650776).

The spelling of 12205300555 in words is "twelve billion, two hundred five million, three hundred thousand, five hundred fifty-five".