22221010321 has 8 divisors (see below), whose sum is σ = 23420274080. Its totient is φ = 21024720288.

The previous prime is 22221010313. The next prime is 22221010333. The reversal of 22221010321 is 12301012222.

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 22221010321 - 2³ = 22221010313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22221010295 and 22221010304.

It is not an unprimeable number, because it can be changed into a prime (22221010121) 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, 728076 + ... + 757981.

It is an arithmetic number, because the mean of its divisors is an integer number (2927534260).

Almost surely, 2^22221010321 is an apocalyptic number.

It is an amenable number.

22221010321 is a deficient number, since it is larger than the sum of its proper divisors (1199263759).

22221010321 is a wasteful number, since it uses less digits than its factorization.

22221010321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486863.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22221010321 its reverse (12301012222), we get a palindrome (34522022543).

The spelling of 22221010321 in words is "twenty-two billion, two hundred twenty-one million, ten thousand, three hundred twenty-one".