222361361 has 4 divisors (see below), whose sum is σ = 222736932. Its totient is φ = 221985792.

The previous prime is 222361333. The next prime is 222361367. The reversal of 222361361 is 163163222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 182115025 + 40246336 = 13495^2 + 6344^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222361361 is a prime.

It is a Duffinian number.

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 222361361.

It is not an unprimeable number, because it can be changed into a prime (222361367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186896 + ... + 188081.

It is an arithmetic number, because the mean of its divisors is an integer number (55684233).

Almost surely, 2^222361361 is an apocalyptic number.

It is an amenable number.

222361361 is a deficient number, since it is larger than the sum of its proper divisors (375571).

222361361 is an equidigital number, since it uses as much as digits as its factorization.

222361361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375570.

The product of its digits is 2592, while the sum is 26.

The square root of 222361361 is about 14911.7859762002. The cubic root of 222361361 is about 605.8332538717.

The spelling of 222361361 in words is "two hundred twenty-two million, three hundred sixty-one thousand, three hundred sixty-one".