222516 has 36 divisors (see below), whose sum is σ = 643552. Its totient is φ = 63504.

The previous prime is 222511. The next prime is 222527. The reversal of 222516 is 615222.

222516 = 41³ + 42³ + 43³.

222516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222511) by changing a digit.

222516 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 11 ways as a sum of consecutive naturals, for example, 190 + ... + 693.

2²²²⁵¹⁶ is an apocalyptic number.

It is an amenable number.

222516 is an abundant number, since it is smaller than the sum of its proper divisors (421036).

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

222516 is a wasteful number, since it uses less digits than its factorization.

222516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900 (or 895 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 222516 is about 471.7160162640. The cubic root of 222516 is about 60.5973661568.

Adding to 222516 its reverse (615222), we get a palindrome (837738).

The spelling of 222516 in words is "two hundred twenty-two thousand, five hundred sixteen".