12440140022 has 4 divisors (see below), whose sum is σ = 18660210036. Its totient is φ = 6220070010.

The previous prime is 12440140001. The next prime is 12440140049. The reversal of 12440140022 is 22004104421.

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

It is a junction number, because it is equal to n+sod(n) for n = 12440139976 and 12440140003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3110035004 + ... + 3110035007.

It is an arithmetic number, because the mean of its divisors is an integer number (4665052509).

Almost surely, 2^12440140022 is an apocalyptic number.

12440140022 is a deficient number, since it is larger than the sum of its proper divisors (6220070014).

12440140022 is an equidigital number, since it uses as much as digits as its factorization.

12440140022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6220070013.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 12440140022 its reverse (22004104421), we get a palindrome (34444244443).

The spelling of 12440140022 in words is "twelve billion, four hundred forty million, one hundred forty thousand, twenty-two".