222220322 has 8 divisors (see below), whose sum is σ = 337896876. Its totient is φ = 109588032.

The previous prime is 222220309. The next prime is 222220331. The reversal of 222220322 is 223022222.

It can be written as a sum of positive squares in 2 ways, for example, as 221444161 + 776161 = 14881^2 + 881^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 222220322.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760883 + ... + 761174.

Almost surely, 2^222220322 is an apocalyptic number.

222220322 is a deficient number, since it is larger than the sum of its proper divisors (115676554).

222220322 is a wasteful number, since it uses less digits than its factorization.

222220322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522132.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 222220322 is about 14907.0561144714. The cubic root of 222220322 is about 605.7051378060.

Adding to 222220322 its reverse (223022222), we get a palindrome (445242544).

The spelling of 222220322 in words is "two hundred twenty-two million, two hundred twenty thousand, three hundred twenty-two".