12205520003 has 4 divisors (see below), whose sum is σ = 12535398960. Its totient is φ = 11875641048.

The previous prime is 12205519999. The next prime is 12205520021. The reversal of 12205520003 is 30002550221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12205520003 - 2² = 12205519999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12205520023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164939423 + ... + 164939496.

It is an arithmetic number, because the mean of its divisors is an integer number (3133849740).

Almost surely, 2^12205520003 is an apocalyptic number.

12205520003 is a deficient number, since it is larger than the sum of its proper divisors (329878957).

12205520003 is an equidigital number, since it uses as much as digits as its factorization.

12205520003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329878956.

The product of its (nonzero) digits is 600, while the sum is 20.

The spelling of 12205520003 in words is "twelve billion, two hundred five million, five hundred twenty thousand, three".