22221020223 has 40 divisors (see below), whose sum is σ = 34434818880. Its totient is φ = 14269582080.

The previous prime is 22221020219. The next prime is 22221020243. The reversal of 22221020223 is 32202012222.

It is not a de Polignac number, because 22221020223 - 2² = 22221020219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22221020196 and 22221020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221020203) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 220011 + ... + 304707.

It is an arithmetic number, because the mean of its divisors is an integer number (860870472).

Almost surely, 2^22221020223 is an apocalyptic number.

22221020223 is a deficient number, since it is larger than the sum of its proper divisors (12213798657).

22221020223 is an equidigital number, since it uses as much as digits as its factorization.

22221020223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84829 (or 84820 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22221020223 its reverse (32202012222), we get a palindrome (54423032445).

The spelling of 22221020223 in words is "twenty-two billion, two hundred twenty-one million, twenty thousand, two hundred twenty-three".