22052543221 has 8 divisors (see below), whose sum is σ = 23401373760. Its totient is φ = 20736214752.

The previous prime is 22052543179. The next prime is 22052543231. The reversal of 22052543221 is 12234525022.

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 22052543221 - 2⁹ = 22052542709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22052543221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22052543231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8124120 + ... + 8126833.

It is an arithmetic number, because the mean of its divisors is an integer number (2925171720).

Almost surely, 2^22052543221 is an apocalyptic number.

It is an amenable number.

22052543221 is a deficient number, since it is larger than the sum of its proper divisors (1348830539).

22052543221 is a wasteful number, since it uses less digits than its factorization.

22052543221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16251035.

The product of its (nonzero) digits is 9600, while the sum is 28.

The spelling of 22052543221 in words is "twenty-two billion, fifty-two million, five hundred forty-three thousand, two hundred twenty-one".