22530335521 has 4 divisors (see below), whose sum is σ = 22542328000. Its totient is φ = 22518343044.

The previous prime is 22530335459. The next prime is 22530335533. The reversal of 22530335521 is 12553303522.

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 a de Polignac number, because none of the positive numbers 2^k-22530335521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22530335921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5993421 + ... + 5997178.

It is an arithmetic number, because the mean of its divisors is an integer number (5635582000).

Almost surely, 2^22530335521 is an apocalyptic number.

It is an amenable number.

22530335521 is a deficient number, since it is larger than the sum of its proper divisors (11992479).

22530335521 is a wasteful number, since it uses less digits than its factorization.

22530335521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11992478.

The product of its (nonzero) digits is 27000, while the sum is 31.

The spelling of 22530335521 in words is "twenty-two billion, five hundred thirty million, three hundred thirty-five thousand, five hundred twenty-one".