222321193 has 2 divisors, whose sum is σ = 222321194. Its totient is φ = 222321192.

The previous prime is 222321179. The next prime is 222321241. The reversal of 222321193 is 391123222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211615209 + 10705984 = 14547^2 + 3272^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222321193 is a prime.

It is not a weakly prime, because it can be changed into another prime (222321133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111160596 + 111160597.

It is an arithmetic number, because the mean of its divisors is an integer number (111160597).

Almost surely, 2^222321193 is an apocalyptic number.

It is an amenable number.

222321193 is a deficient number, since it is larger than the sum of its proper divisors (1).

222321193 is an equidigital number, since it uses as much as digits as its factorization.

222321193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 25.

The square root of 222321193 is about 14910.4390612752. The cubic root of 222321193 is about 605.7967718506.

The spelling of 222321193 in words is "two hundred twenty-two million, three hundred twenty-one thousand, one hundred ninety-three".