222120232321 has 16 divisors (see below), whose sum is σ = 241656927120. Its totient is φ = 202934995200.

The previous prime is 222120232319. The next prime is 222120232333. The reversal of 222120232321 is 123232021222.

It can be written as a sum of positive squares in 8 ways, for example, as 527850625 + 221592381696 = 22975^2 + 470736^2 .

It is a cyclic number.

It is not a de Polignac number, because 222120232321 - 2¹ = 222120232319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222120232292 and 222120232301.

It is not an unprimeable number, because it can be changed into a prime (222120232381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4054911 + ... + 4109323.

It is an arithmetic number, because the mean of its divisors is an integer number (15103557945).

Almost surely, 2^222120232321 is an apocalyptic number.

It is an amenable number.

222120232321 is a deficient number, since it is larger than the sum of its proper divisors (19536694799).

222120232321 is a wasteful number, since it uses less digits than its factorization.

222120232321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57636.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 222120232321 its reverse (123232021222), we get a palindrome (345352253543).

The spelling of 222120232321 in words is "two hundred twenty-two billion, one hundred twenty million, two hundred thirty-two thousand, three hundred twenty-one".