22201202221 has 8 divisors (see below), whose sum is σ = 24227060544. Its totient is φ = 20176605120.

The previous prime is 22201202201. The next prime is 22201202239. The reversal of 22201202221 is 12220210222.

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 22201202221 - 2⁵ = 22201202189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22201202195 and 22201202204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201202201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278305 + ... + 349078.

It is an arithmetic number, because the mean of its divisors is an integer number (3028382568).

Almost surely, 2^22201202221 is an apocalyptic number.

It is an amenable number.

22201202221 is a deficient number, since it is larger than the sum of its proper divisors (2025858323).

22201202221 is a wasteful number, since it uses less digits than its factorization.

22201202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630611.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22201202221 its reverse (12220210222), we get a palindrome (34421412443).

It can be divided in two parts, 22201 and 202221, that added together give a palindrome (224422).

The spelling of 22201202221 in words is "twenty-two billion, two hundred one million, two hundred two thousand, two hundred twenty-one".