22220143221 has 8 divisors (see below), whose sum is σ = 29627701920. Its totient is φ = 14813006672.

The previous prime is 22220143193. The next prime is 22220143229. The reversal of 22220143221 is 12234102222.

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 22220143221 - 2¹⁷ = 22220012149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220143229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50050 + ... + 216668.

It is an arithmetic number, because the mean of its divisors is an integer number (3703462740).

Almost surely, 2^22220143221 is an apocalyptic number.

It is an amenable number.

22220143221 is a deficient number, since it is larger than the sum of its proper divisors (7407558699).

22220143221 is a wasteful number, since it uses less digits than its factorization.

22220143221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211075.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 22220143221 its reverse (12234102222), we get a palindrome (34454245443).

The spelling of 22220143221 in words is "twenty-two billion, two hundred twenty million, one hundred forty-three thousand, two hundred twenty-one".