22524035221 has 4 divisors (see below), whose sum is σ = 22649868000. Its totient is φ = 22398202444.

The previous prime is 22524035189. The next prime is 22524035249. The reversal of 22524035221 is 12253042522.

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 22524035221 - 2⁵ = 22524035189 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 22524035221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22524035291) 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, 62916121 + ... + 62916478.

It is an arithmetic number, because the mean of its divisors is an integer number (5662467000).

Almost surely, 2^22524035221 is an apocalyptic number.

It is an amenable number.

22524035221 is a deficient number, since it is larger than the sum of its proper divisors (125832779).

22524035221 is a wasteful number, since it uses less digits than its factorization.

22524035221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125832778.

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

Adding to 22524035221 its reverse (12253042522), we get a palindrome (34777077743).

The spelling of 22524035221 in words is "twenty-two billion, five hundred twenty-four million, thirty-five thousand, two hundred twenty-one".