222230021321 has 32 divisors (see below), whose sum is σ = 279728225280. Its totient is φ = 171510120000.

The previous prime is 222230021317. The next prime is 222230021359. The reversal of 222230021321 is 123120032222.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 222230021321 - 2² = 222230021317 is a prime.

It is a super-2 number, since 2×222230021321² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222230021293 and 222230021302.

It is not an unprimeable number, because it can be changed into a prime (222230021381) 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, 3427415 + ... + 3491651.

It is an arithmetic number, because the mean of its divisors is an integer number (8741507040).

Almost surely, 2^222230021321 is an apocalyptic number.

It is an amenable number.

222230021321 is a deficient number, since it is larger than the sum of its proper divisors (57498203959).

222230021321 is a wasteful number, since it uses less digits than its factorization.

222230021321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64685.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 222230021321 its reverse (123120032222), we get a palindrome (345350053543).

The spelling of 222230021321 in words is "two hundred twenty-two billion, two hundred thirty million, twenty-one thousand, three hundred twenty-one".