22020001100221 has 8 divisors (see below), whose sum is σ = 22047097174200. Its totient is φ = 21992905697280.

The previous prime is 22020001100179. The next prime is 22020001100231. The reversal of 22020001100221 is 12200110002022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5912260332196 + 16107740768025 = 2431514^2 + 4013445^2 .

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 22020001100221 - 2²⁵ = 22019967545789 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 (22020001100231) 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, 109033825 + ... + 109235593.

It is an arithmetic number, because the mean of its divisors is an integer number (2755887146775).

Almost surely, 2^{22020001100221} is an apocalyptic number.

It is an amenable number.

22020001100221 is a deficient number, since it is larger than the sum of its proper divisors (27096073979).

22020001100221 is a wasteful number, since it uses less digits than its factorization.

22020001100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335519.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22020001100221 its reverse (12200110002022), we get a palindrome (34220111102243).

The spelling of 22020001100221 in words is "twenty-two trillion, twenty billion, one million, one hundred thousand, two hundred twenty-one".