222222193 has 2 divisors, whose sum is σ = 222222194. Its totient is φ = 222222192.

The previous prime is 222222149. The next prime is 222222227. The reversal of 222222193 is 391222222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221206129 + 1016064 = 14873^2 + 1008^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222222193 is a prime.

It is not a weakly prime, because it can be changed into another prime (222222103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111111096 + 111111097.

It is an arithmetic number, because the mean of its divisors is an integer number (111111097).

Almost surely, 2^222222193 is an apocalyptic number.

It is an amenable number.

222222193 is a deficient number, since it is larger than the sum of its proper divisors (1).

222222193 is an equidigital number, since it uses as much as digits as its factorization.

222222193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 222222193 is about 14907.1188698554. The cubic root of 222222193 is about 605.7068377272.

It can be divided in two parts, 22222219 and 3, that added together give a palindrome (22222222).

The spelling of 222222193 in words is "two hundred twenty-two million, two hundred twenty-two thousand, one hundred ninety-three".