222086 has 4 divisors (see below), whose sum is σ = 333132. Its totient is φ = 111042.

The previous prime is 222073. The next prime is 222107. The reversal of 222086 is 680222.

222086 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 680222 = 2 ⋅340111.

It is an Ulam number.

It is a Curzon number.

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55520 + ... + 55523.

It is an arithmetic number, because the mean of its divisors is an integer number (83283).

2²²²⁰⁸⁶ is an apocalyptic number.

222086 is a deficient number, since it is larger than the sum of its proper divisors (111046).

222086 is a wasteful number, since it uses less digits than its factorization.

222086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111045.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 222086 is about 471.2600131562. The cubic root of 222086 is about 60.5583072877.

The spelling of 222086 in words is "two hundred twenty-two thousand, eighty-six".