222087 has 8 divisors (see below), whose sum is σ = 298480. Its totient is φ = 146880.

The previous prime is 222073. The next prime is 222107. The reversal of 222087 is 780222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222087 - 2⁶ = 222023 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339 + ... + 747.

It is an arithmetic number, because the mean of its divisors is an integer number (37310).

2²²²⁰⁸⁷ is an apocalyptic number.

222087 is a deficient number, since it is larger than the sum of its proper divisors (76393).

222087 is a wasteful number, since it uses less digits than its factorization.

222087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 222087 is about 471.2610741404. The cubic root of 222087 is about 60.5583981807.

The spelling of 222087 in words is "two hundred twenty-two thousand, eighty-seven".