22144131332 has 24 divisors (see below), whose sum is σ = 40151826456. Its totient is φ = 10677477888.

The previous prime is 22144131323. The next prime is 22144131403. The reversal of 22144131332 is 23313144122.

It can be written as a sum of positive squares in 4 ways, for example, as 1830470656 + 20313660676 = 42784^2 + 142526^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 645323 + ... + 678770.

It is an arithmetic number, because the mean of its divisors is an integer number (1672992769).

Almost surely, 2^22144131332 is an apocalyptic number.

It is an amenable number.

22144131332 is a deficient number, since it is larger than the sum of its proper divisors (18007695124).

22144131332 is a wasteful number, since it uses less digits than its factorization.

22144131332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324247 (or 1324245 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

Adding to 22144131332 its reverse (23313144122), we get a palindrome (45457275454).

The spelling of 22144131332 in words is "twenty-two billion, one hundred forty-four million, one hundred thirty-one thousand, three hundred thirty-two".