222213312221 has 8 divisors (see below), whose sum is σ = 229935911040. Its totient is φ = 214606842912.

The previous prime is 222213312199. The next prime is 222213312229. The reversal of 222213312221 is 122213312222.

It is a happy number.

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 222213312221 - 2¹⁸ = 222213050077 is a prime.

It is a super-2 number, since 2×222213312221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222213312229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29028485 + ... + 29036138.

It is an arithmetic number, because the mean of its divisors is an integer number (28741988880).

Almost surely, 2^222213312221 is an apocalyptic number.

It is an amenable number.

222213312221 is a deficient number, since it is larger than the sum of its proper divisors (7722598819).

222213312221 is an equidigital number, since it uses as much as digits as its factorization.

222213312221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58064755.

The product of its digits is 1152, while the sum is 23.

Adding to 222213312221 its reverse (122213312222), we get a palindrome (344426624443).

Subtracting from 222213312221 its reverse (122213312222), we obtain a palindrome (99999999999).

The spelling of 222213312221 in words is "two hundred twenty-two billion, two hundred thirteen million, three hundred twelve thousand, two hundred twenty-one".