222355685 has 4 divisors (see below), whose sum is σ = 266826828. Its totient is φ = 177884544.

The previous prime is 222355663. The next prime is 222355711. The reversal of 222355685 is 586553222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60124516 + 162231169 = 7754^2 + 12737^2 .

It is a cyclic number.

It is not a de Polignac number, because 222355685 - 2⁶ = 222355621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22235564 + ... + 22235573.

It is an arithmetic number, because the mean of its divisors is an integer number (66706707).

Almost surely, 2^222355685 is an apocalyptic number.

It is an amenable number.

222355685 is a deficient number, since it is larger than the sum of its proper divisors (44471143).

222355685 is an equidigital number, since it uses as much as digits as its factorization.

222355685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44471142.

The product of its digits is 144000, while the sum is 38.

The square root of 222355685 is about 14911.5956557305. The cubic root of 222355685 is about 605.8280989911.

The spelling of 222355685 in words is "two hundred twenty-two million, three hundred fifty-five thousand, six hundred eighty-five".