222000000321 has 32 divisors (see below), whose sum is σ = 339520896000. Its totient is φ = 127713185600.

The previous prime is 222000000319. The next prime is 222000000329. The reversal of 222000000321 is 123000000222.

It is not a de Polignac number, because 222000000321 - 2¹ = 222000000319 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 222000000297 and 222000000306.

It is not an unprimeable number, because it can be changed into a prime (222000000329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1016946 + ... + 1215803.

It is an arithmetic number, because the mean of its divisors is an integer number (10610028000).

Almost surely, 2^222000000321 is an apocalyptic number.

It is an amenable number.

222000000321 is a deficient number, since it is larger than the sum of its proper divisors (117520895679).

222000000321 is a wasteful number, since it uses less digits than its factorization.

222000000321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2232917.

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 222000000321 its reverse (123000000222), we get a palindrome (345000000543).

Subtracting from 222000000321 its reverse (123000000222), we obtain a palindrome (99000000099).

The spelling of 222000000321 in words is "two hundred twenty-two billion, three hundred twenty-one", and thus it is an aban number.