222566361 has 8 divisors (see below), whose sum is σ = 312373920. Its totient is φ = 140568192.

The previous prime is 222566347. The next prime is 222566401. The reversal of 222566361 is 163665222.

222566361 is digitally balanced in base 2, 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.

It is not a de Polignac number, because 222566361 - 2⁷ = 222566233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222565361) 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, 1952280 + ... + 1952393.

It is an arithmetic number, because the mean of its divisors is an integer number (39046740).

Almost surely, 2^222566361 is an apocalyptic number.

It is an amenable number.

222566361 is a deficient number, since it is larger than the sum of its proper divisors (89807559).

222566361 is a wasteful number, since it uses less digits than its factorization.

222566361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3904695.

The product of its digits is 25920, while the sum is 33.

The square root of 222566361 is about 14918.6581501152. The cubic root of 222566361 is about 606.0193738428.

It can be divided in two parts, 2225 and 66361, that added together give a palindrome (68586).

The spelling of 222566361 in words is "two hundred twenty-two million, five hundred sixty-six thousand, three hundred sixty-one".