222091273 has 2 divisors, whose sum is σ = 222091274. Its totient is φ = 222091272.

The previous prime is 222091271. The next prime is 222091291. The reversal of 222091273 is 372190222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168039369 + 54051904 = 12963^2 + 7352^2 .

It is a cyclic number.

It is not a de Polignac number, because 222091273 - 2¹ = 222091271 is a prime.

It is a super-3 number, since 3×222091273³ (a number of 26 digits) contains 333 as substring.

Together with 222091271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (222091271) by changing a digit.

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 as a sum of consecutive naturals, namely, 111045636 + 111045637.

It is an arithmetic number, because the mean of its divisors is an integer number (111045637).

Almost surely, 2^222091273 is an apocalyptic number.

It is an amenable number.

222091273 is a deficient number, since it is larger than the sum of its proper divisors (1).

222091273 is an equidigital number, since it uses as much as digits as its factorization.

222091273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 222091273 is about 14902.7270323253. The cubic root of 222091273 is about 605.5878656360.

The spelling of 222091273 in words is "two hundred twenty-two million, ninety-one thousand, two hundred seventy-three".