22221032221 has 8 divisors (see below), whose sum is σ = 23036292864. Its totient is φ = 21411924960.

The previous prime is 22221032219. The next prime is 22221032257. The reversal of 22221032221 is 12223012222.

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 22221032221 - 2¹ = 22221032219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221032521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1530991 + ... + 1545436.

It is an arithmetic number, because the mean of its divisors is an integer number (2879536608).

Almost surely, 2^22221032221 is an apocalyptic number.

It is an amenable number.

22221032221 is a deficient number, since it is larger than the sum of its proper divisors (815260643).

22221032221 is a wasteful number, since it uses less digits than its factorization.

22221032221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076691.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22221032221 its reverse (12223012222), we get a palindrome (34444044443).

The spelling of 22221032221 in words is "twenty-two billion, two hundred twenty-one million, thirty-two thousand, two hundred twenty-one".