222220220321 has 8 divisors (see below), whose sum is σ = 242479029600. Its totient is φ = 201970906240.

The previous prime is 222220220303. The next prime is 222220220333. The reversal of 222220220321 is 123022022222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222220220321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222220220293 and 222220220302.

It is not an unprimeable number, because it can be changed into a prime (222220220021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2324816 + ... + 2418513.

It is an arithmetic number, because the mean of its divisors is an integer number (30309878700).

Almost surely, 2^222220220321 is an apocalyptic number.

It is an amenable number.

222220220321 is a deficient number, since it is larger than the sum of its proper divisors (20258809279).

222220220321 is a wasteful number, since it uses less digits than its factorization.

222220220321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4747599.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 222220220321 its reverse (123022022222), we get a palindrome (345242242543).

The spelling of 222220220321 in words is "two hundred twenty-two billion, two hundred twenty million, two hundred twenty thousand, three hundred twenty-one".