12440314221 has 8 divisors (see below), whose sum is σ = 17308263360. Its totient is φ = 7932953952.

The previous prime is 12440314193. The next prime is 12440314241. The reversal of 12440314221 is 12241304421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12440314221 - 2⁵ = 12440314189 is a prime.

It is a super-2 number, since 2×12440314221² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12440314191 and 12440314200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12440314241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90147136 + ... + 90147273.

It is an arithmetic number, because the mean of its divisors is an integer number (2163532920).

Almost surely, 2^12440314221 is an apocalyptic number.

It is an amenable number.

12440314221 is a deficient number, since it is larger than the sum of its proper divisors (4867949139).

12440314221 is a wasteful number, since it uses less digits than its factorization.

12440314221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180294435.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 12440314221 its reverse (12241304421), we get a palindrome (24681618642).

The spelling of 12440314221 in words is "twelve billion, four hundred forty million, three hundred fourteen thousand, two hundred twenty-one".