22354432221 has 8 divisors (see below), whose sum is σ = 32515537824. Its totient is φ = 13548140720.

The previous prime is 22354432213. The next prime is 22354432237. The reversal of 22354432221 is 12223445322.

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 22354432221 - 2³ = 22354432213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22354432201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338703486 + ... + 338703551.

It is an arithmetic number, because the mean of its divisors is an integer number (4064442228).

Almost surely, 2^22354432221 is an apocalyptic number.

It is an amenable number.

22354432221 is a deficient number, since it is larger than the sum of its proper divisors (10161105603).

22354432221 is a wasteful number, since it uses less digits than its factorization.

22354432221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677407051.

The product of its digits is 23040, while the sum is 30.

Adding to 22354432221 its reverse (12223445322), we get a palindrome (34577877543).

The spelling of 22354432221 in words is "twenty-two billion, three hundred fifty-four million, four hundred thirty-two thousand, two hundred twenty-one".