12221222003 has 4 divisors (see below), whose sum is σ = 12221676960. Its totient is φ = 12220767048.

The previous prime is 12221221981. The next prime is 12221222011. The reversal of 12221222003 is 30022212221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12221222003 is a prime.

It is a super-2 number, since 2×12221222003² (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 (12221222053) 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, 184475 + ... + 241812.

It is an arithmetic number, because the mean of its divisors is an integer number (3055419240).

Almost surely, 2^12221222003 is an apocalyptic number.

12221222003 is a deficient number, since it is larger than the sum of its proper divisors (454957).

12221222003 is an equidigital number, since it uses as much as digits as its factorization.

12221222003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454956.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12221222003 its reverse (30022212221), we get a palindrome (42243434224).

The spelling of 12221222003 in words is "twelve billion, two hundred twenty-one million, two hundred twenty-two thousand, three".