12205609481 has 8 divisors (see below), whose sum is σ = 13836318720. Its totient is φ = 10673731152.

The previous prime is 12205609463. The next prime is 12205609541. The reversal of 12205609481 is 18490650221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12205609481 - 2¹⁸ = 12205347337 is a prime.

It is a super-2 number, since 2×12205609481² (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 (12205609181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24707465 + ... + 24707958.

It is an arithmetic number, because the mean of its divisors is an integer number (1729539840).

Almost surely, 2^12205609481 is an apocalyptic number.

It is an amenable number.

12205609481 is a deficient number, since it is larger than the sum of its proper divisors (1630709239).

12205609481 is a wasteful number, since it uses less digits than its factorization.

12205609481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49415455.

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 12205609481 in words is "twelve billion, two hundred five million, six hundred nine thousand, four hundred eighty-one".