222241344221 has 8 divisors (see below), whose sum is σ = 239350000344.
Its totient is φ = 205134569280.
The previous prime is 222241344163. The next prime is 222241344257. The reversal of 222241344221 is 122443142222.
It can be written as a sum of positive squares in 4 ways, for example, as 2223122500 + 220018221721 = 47150^2 + 469061^2
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-222241344221 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (222241344271) 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, 219986 + ... + 702051.
It is an arithmetic number, because the mean of its divisors is an integer number (29918750043).
Almost surely, 2222241344221 is an apocalyptic number.
It is an amenable number.
222241344221 is a deficient number, since it is larger than the sum of its proper divisors (17108656123).
222241344221 is a wasteful number, since it uses less digits than its factorization.
222241344221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 940591.
The product of its digits is 12288, while the sum is 29.
Adding to 222241344221 its reverse (122443142222), we get a palindrome (344684486443).
The spelling of 222241344221 in words is "two hundred twenty-two billion, two hundred forty-one million, three hundred forty-four thousand, two hundred twenty-one".