222068845 has 4 divisors (see below), whose sum is σ = 266482620. Its totient is φ = 177655072.

The previous prime is 222068837. The next prime is 222068851. The reversal of 222068845 is 548860222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 548860222 = 2 ⋅274430111.

It can be written as a sum of positive squares in 2 ways, for example, as 57562569 + 164506276 = 7587^2 + 12826^2 .

It is a cyclic number.

It is not a de Polignac number, because 222068845 - 2³ = 222068837 is a prime.

It is a congruent number.

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, 22206880 + ... + 22206889.

It is an arithmetic number, because the mean of its divisors is an integer number (66620655).

Almost surely, 2^222068845 is an apocalyptic number.

It is an amenable number.

222068845 is a deficient number, since it is larger than the sum of its proper divisors (44413775).

222068845 is an equidigital number, since it uses as much as digits as its factorization.

222068845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44413774.

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 222068845 is about 14901.9745335979. The cubic root of 222068845 is about 605.5674797504.

The spelling of 222068845 in words is "two hundred twenty-two million, sixty-eight thousand, eight hundred forty-five".