22443223255221 has 8 divisors (see below), whose sum is σ = 29986770113280. Its totient is φ = 14930912616992.

The previous prime is 22443223255217. The next prime is 22443223255231. The reversal of 22443223255221 is 12255232234422.

It is a happy number.

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 22443223255221 - 2² = 22443223255217 is a prime.

It is a super-4 number, since 4×22443223255221⁴ (a number of 55 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22443223255221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22443223255231) 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, 7809053280 + ... + 7809056153.

It is an arithmetic number, because the mean of its divisors is an integer number (3748346264160).

Almost surely, 2^{22443223255221} is an apocalyptic number.

It is an amenable number.

22443223255221 is a deficient number, since it is larger than the sum of its proper divisors (7543546858059).

22443223255221 is a wasteful number, since it uses less digits than its factorization.

22443223255221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15618109915.

The product of its digits is 460800, while the sum is 39.

Adding to 22443223255221 its reverse (12255232234422), we get a palindrome (34698455489643).

The spelling of 22443223255221 in words is "twenty-two trillion, four hundred forty-three billion, two hundred twenty-three million, two hundred fifty-five thousand, two hundred twenty-one".