12000221303 has 12 divisors (see below), whose sum is σ = 14171222160. Its totient is φ = 9954095040.

The previous prime is 12000221269. The next prime is 12000221329. The reversal of 12000221303 is 30312200021.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-12000221303 is a prime.

It is a super-2 number, since 2×12000221303² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000221393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 885218 + ... + 898671.

It is an arithmetic number, because the mean of its divisors is an integer number (1180935180).

Almost surely, 2^12000221303 is an apocalyptic number.

12000221303 is a deficient number, since it is larger than the sum of its proper divisors (2171000857).

12000221303 is an equidigital number, since it uses as much as digits as its factorization.

12000221303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783958 (or 1783927 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 12000221303 its reverse (30312200021), we get a palindrome (42312421324).

The spelling of 12000221303 in words is "twelve billion, two hundred twenty-one thousand, three hundred three".