222261 has 16 divisors (see below), whose sum is σ = 329280. Its totient is φ = 132480.

The previous prime is 222247. The next prime is 222269. The reversal of 222261 is 162222.

222261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222261 - 2⁶ = 222197 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 222261.

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 222261.

It is not an unprimeable number, because it can be changed into a prime (222269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1530 + ... + 1668.

It is an arithmetic number, because the mean of its divisors is an integer number (20580).

2²²²²⁶¹ is an apocalyptic number.

It is an amenable number.

222261 is a deficient number, since it is larger than the sum of its proper divisors (107019).

222261 is a wasteful number, since it uses less digits than its factorization.

222261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196.

The product of its digits is 96, while the sum is 15.

The square root of 222261 is about 471.4456490413. The cubic root of 222261 is about 60.5742094178.

Adding to 222261 its reverse (162222), we get a palindrome (384483).

The spelling of 222261 in words is "two hundred twenty-two thousand, two hundred sixty-one".