22221322201 has 8 divisors (see below), whose sum is σ = 23932677384. Its totient is φ = 20510256000.

The previous prime is 22221322171. The next prime is 22221322213. The reversal of 22221322201 is 10222312222.

It can be written as a sum of positive squares in 4 ways, for example, as 559369801 + 21661952400 = 23651^2 + 147180^2 .

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

It is not a de Polignac number, because 22221322201 - 2¹¹ = 22221320153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22221322241) 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, 103275 + ... + 234751.

It is an arithmetic number, because the mean of its divisors is an integer number (2991584673).

Almost surely, 2^22221322201 is an apocalyptic number.

It is an amenable number.

22221322201 is a deficient number, since it is larger than the sum of its proper divisors (1711355183).

22221322201 is a wasteful number, since it uses less digits than its factorization.

22221322201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144491.

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

Adding to 22221322201 its reverse (10222312222), we get a palindrome (32443634423).

The spelling of 22221322201 in words is "twenty-two billion, two hundred twenty-one million, three hundred twenty-two thousand, two hundred one".