22022440221 has 8 divisors (see below), whose sum is σ = 29409064704. Its totient is φ = 14658721280.

The previous prime is 22022440217. The next prime is 22022440229. The reversal of 22022440221 is 12204422022.

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 22022440221 - 2² = 22022440217 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022440229) 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, 5724141 + ... + 5727986.

It is an arithmetic number, because the mean of its divisors is an integer number (3676133088).

Almost surely, 2^22022440221 is an apocalyptic number.

It is an amenable number.

22022440221 is a deficient number, since it is larger than the sum of its proper divisors (7386624483).

22022440221 is a wasteful number, since it uses less digits than its factorization.

22022440221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11452771.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 22022440221 its reverse (12204422022), we get a palindrome (34226862243).

The spelling of 22022440221 in words is "twenty-two billion, twenty-two million, four hundred forty thousand, two hundred twenty-one".