22532725221 has 4 divisors (see below), whose sum is σ = 30043633632. Its totient is φ = 15021816812.

The previous prime is 22532725147. The next prime is 22532725247. The reversal of 22532725221 is 12252723522.

It is a happy number.

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 22532725221 - 2¹⁰ = 22532724197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22532725421) 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, 3755454201 + ... + 3755454206.

It is an arithmetic number, because the mean of its divisors is an integer number (7510908408).

Almost surely, 2^22532725221 is an apocalyptic number.

It is an amenable number.

22532725221 is a deficient number, since it is larger than the sum of its proper divisors (7510908411).

22532725221 is an equidigital number, since it uses as much as digits as its factorization.

22532725221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7510908410.

The product of its digits is 33600, while the sum is 33.

The spelling of 22532725221 in words is "twenty-two billion, five hundred thirty-two million, seven hundred twenty-five thousand, two hundred twenty-one".