222078 has 8 divisors (see below), whose sum is σ = 444168. Its totient is φ = 74024.

The previous prime is 222073. The next prime is 222107. The reversal of 222078 is 870222.

222078 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

222078 is an admirable number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 222078.

It is not an unprimeable number, because it can be changed into a prime (222073) by changing a digit.

222078 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18501 + ... + 18512.

It is an arithmetic number, because the mean of its divisors is an integer number (55521).

2²²²⁰⁷⁸ is an apocalyptic number.

222078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222078 is a wasteful number, since it uses less digits than its factorization.

222078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37018.

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

The square root of 222078 is about 471.2515251965. The cubic root of 222078 is about 60.5575801335.

The spelling of 222078 in words is "two hundred twenty-two thousand, seventy-eight".