22230212221 has 8 divisors (see below), whose sum is σ = 25426638720. Its totient is φ = 19038956208.

The previous prime is 22230212203. The next prime is 22230212261. The reversal of 22230212221 is 12221203222.

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 22230212221 - 2⁷ = 22230212093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22230212201) 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, 1283401 + ... + 1300606.

It is an arithmetic number, because the mean of its divisors is an integer number (3178329840).

Almost surely, 2^22230212221 is an apocalyptic number.

It is an amenable number.

22230212221 is a deficient number, since it is larger than the sum of its proper divisors (3196426499).

22230212221 is a wasteful number, since it uses less digits than its factorization.

22230212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2585243.

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

Adding to 22230212221 its reverse (12221203222), we get a palindrome (34451415443).

The spelling of 22230212221 in words is "twenty-two billion, two hundred thirty million, two hundred twelve thousand, two hundred twenty-one".