222210012321 has 24 divisors (see below), whose sum is σ = 350756044704. Its totient is φ = 134439298560.

The previous prime is 222210012319. The next prime is 222210012337. The reversal of 222210012321 is 123210012222.

222210012321 is a `hidden beast` number, since 222 + 210 + 0 + 1 + 232 + 1 = 666.

It is not a de Polignac number, because 222210012321 - 2¹ = 222210012319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222210012294 and 222210012303.

It is not an unprimeable number, because it can be changed into a prime (222210012121) 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 23 ways as a sum of consecutive naturals, for example, 1887891 + ... + 2002136.

It is an arithmetic number, because the mean of its divisors is an integer number (14614835196).

Almost surely, 2^222210012321 is an apocalyptic number.

It is an amenable number.

222210012321 is a deficient number, since it is larger than the sum of its proper divisors (128546032383).

222210012321 is a wasteful number, since it uses less digits than its factorization.

222210012321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3890621 (or 3890618 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 222210012321 its reverse (123210012222), we get a palindrome (345420024543).

Subtracting from 222210012321 its reverse (123210012222), we obtain a palindrome (99000000099).

The spelling of 222210012321 in words is "two hundred twenty-two billion, two hundred ten million, twelve thousand, three hundred twenty-one".