22003223221 has 8 divisors (see below), whose sum is σ = 25759871424. Its totient is φ = 18399907680.

The previous prime is 22003223167. The next prime is 22003223243. The reversal of 22003223221 is 12232230022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22003223221 - 2¹⁹ = 22002698933 is a prime.

It is a super-2 number, since 2×22003223221² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22003523221) 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, 38332855 + ... + 38333428.

It is an arithmetic number, because the mean of its divisors is an integer number (3219983928).

Almost surely, 2^22003223221 is an apocalyptic number.

It is an amenable number.

22003223221 is a deficient number, since it is larger than the sum of its proper divisors (3756648203).

22003223221 is an equidigital number, since it uses as much as digits as its factorization.

22003223221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76666331.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 22003223221 its reverse (12232230022), we get a palindrome (34235453243).

It can be divided in two parts, 220032 and 23221, that added together give a triangular number (243253 = T₆₉₇).

The spelling of 22003223221 in words is "twenty-two billion, three million, two hundred twenty-three thousand, two hundred twenty-one".