222402402321 has 16 divisors (see below), whose sum is σ = 323631764928. Its totient is φ = 134732100800.

The previous prime is 222402402319. The next prime is 222402402349. The reversal of 222402402321 is 123204204222.

It is not a de Polignac number, because 222402402321 - 2¹ = 222402402319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222402402291 and 222402402300.

It is not an unprimeable number, because it can be changed into a prime (222402402361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1351890 + ... + 1507451.

It is an arithmetic number, because the mean of its divisors is an integer number (20226985308).

Almost surely, 2^222402402321 is an apocalyptic number.

It is an amenable number.

222402402321 is a deficient number, since it is larger than the sum of its proper divisors (101229362607).

222402402321 is a wasteful number, since it uses less digits than its factorization.

222402402321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2861712.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 222402402321 its reverse (123204204222), we get a palindrome (345606606543).

The spelling of 222402402321 in words is "two hundred twenty-two billion, four hundred two million, four hundred two thousand, three hundred twenty-one".