12210491003 has 4 divisors (see below), whose sum is σ = 12233928168. Its totient is φ = 12187053840.

The previous prime is 12210490979. The next prime is 12210491021. The reversal of 12210491003 is 30019401221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30019401221 = 409 ⋅73397069.

It is a cyclic number.

It is not a de Polignac number, because 12210491003 - 2⁶ = 12210490939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12210491003.

It is not an unprimeable number, because it can be changed into a prime (12210491063) 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, 11717801 + ... + 11718842.

It is an arithmetic number, because the mean of its divisors is an integer number (3058482042).

Almost surely, 2^12210491003 is an apocalyptic number.

12210491003 is a deficient number, since it is larger than the sum of its proper divisors (23437165).

12210491003 is an equidigital number, since it uses as much as digits as its factorization.

12210491003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23437164.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12210491003 its reverse (30019401221), we get a palindrome (42229892224).

The spelling of 12210491003 in words is "twelve billion, two hundred ten million, four hundred ninety-one thousand, three".