22040423221 has 8 divisors (see below), whose sum is σ = 22324896000. Its totient is φ = 21756087600.

The previous prime is 22040423219. The next prime is 22040423231. The reversal of 22040423221 is 12232404022.

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

It is a cyclic number.

It is not a de Polignac number, because 22040423221 - 2¹ = 22040423219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22040423192 and 22040423201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22040423231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311496 + ... + 375646.

It is an arithmetic number, because the mean of its divisors is an integer number (2790612000).

Almost surely, 2^22040423221 is an apocalyptic number.

It is an amenable number.

22040423221 is a deficient number, since it is larger than the sum of its proper divisors (284472779).

22040423221 is an equidigital number, since it uses as much as digits as its factorization.

22040423221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68579.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 22040423221 its reverse (12232404022), we get a palindrome (34272827243).

The spelling of 22040423221 in words is "twenty-two billion, forty million, four hundred twenty-three thousand, two hundred twenty-one".