22140040321 has 32 divisors (see below), whose sum is σ = 27224854272. Its totient is φ = 17572515840.

The previous prime is 22140040309. The next prime is 22140040331. The reversal of 22140040321 is 12304004122.

It is a cyclic number.

It is not a de Polignac number, because 22140040321 - 2⁷ = 22140040193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22140040331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10339911 + ... + 10342051.

It is an arithmetic number, because the mean of its divisors is an integer number (850776696).

Almost surely, 2^22140040321 is an apocalyptic number.

It is an amenable number.

22140040321 is a deficient number, since it is larger than the sum of its proper divisors (5084813951).

22140040321 is a wasteful number, since it uses less digits than its factorization.

22140040321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3529.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22140040321 its reverse (12304004122), we get a palindrome (34444044443).

The spelling of 22140040321 in words is "twenty-two billion, one hundred forty million, forty thousand, three hundred twenty-one".