12144221303 has 24 divisors (see below), whose sum is σ = 13222878048. Its totient is φ = 11146942976.

The previous prime is 12144221233. The next prime is 12144221333. The reversal of 12144221303 is 30312244121.

It is not a de Polignac number, because 12144221303 - 2¹² = 12144217207 is a prime.

It is a super-2 number, since 2×12144221303² (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 (12144221333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2647550 + ... + 2652132.

It is an arithmetic number, because the mean of its divisors is an integer number (550953252).

Almost surely, 2^12144221303 is an apocalyptic number.

12144221303 is a deficient number, since it is larger than the sum of its proper divisors (1078656745).

12144221303 is a wasteful number, since it uses less digits than its factorization.

12144221303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4843 (or 4826 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12144221303 its reverse (30312244121), we get a palindrome (42456465424).

The spelling of 12144221303 in words is "twelve billion, one hundred forty-four million, two hundred twenty-one thousand, three hundred three".