222221321101 has 8 divisors (see below), whose sum is σ = 239320090520. Its totient is φ = 205123240512.

The previous prime is 222221321081. The next prime is 222221321117. The reversal of 222221321101 is 101123122222.

It can be written as a sum of positive squares in 4 ways, for example, as 18414218601 + 203807102500 = 135699^2 + 451450^2 .

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 222221321101 - 2⁹ = 222221320589 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 (222221321131) 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, 639595 + ... + 923863.

It is an arithmetic number, because the mean of its divisors is an integer number (29915011315).

Almost surely, 2^222221321101 is an apocalyptic number.

It is an amenable number.

222221321101 is a deficient number, since it is larger than the sum of its proper divisors (17098769419).

222221321101 is a wasteful number, since it uses less digits than its factorization.

222221321101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344415.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 222221321101 its reverse (101123122222), we get a palindrome (323344443323).

The spelling of 222221321101 in words is "two hundred twenty-two billion, two hundred twenty-one million, three hundred twenty-one thousand, one hundred one".