22532052421 has 4 divisors (see below), whose sum is σ = 22849405344. Its totient is φ = 22214699500.

The previous prime is 22532052409. The next prime is 22532052427. The reversal of 22532052421 is 12425023522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22532052421 - 2⁷ = 22532052293 is a prime.

It is a super-2 number, since 2×22532052421² (a number of 22 digits) contains 22 as substring.

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 22532052421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22532052427) 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 3 ways as a sum of consecutive naturals, for example, 158676355 + ... + 158676496.

It is an arithmetic number, because the mean of its divisors is an integer number (5712351336).

Almost surely, 2^22532052421 is an apocalyptic number.

It is an amenable number.

22532052421 is a deficient number, since it is larger than the sum of its proper divisors (317352923).

22532052421 is an equidigital number, since it uses as much as digits as its factorization.

22532052421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317352922.

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

Adding to 22532052421 its reverse (12425023522), we get a palindrome (34957075943).

The spelling of 22532052421 in words is "twenty-two billion, five hundred thirty-two million, fifty-two thousand, four hundred twenty-one".