220222361 has 2 divisors, whose sum is σ = 220222362. Its totient is φ = 220222360.

The previous prime is 220222339. The next prime is 220222363. The reversal of 220222361 is 163222022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 172003225 + 48219136 = 13115^2 + 6944^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220222361 is a prime.

It is a Sophie Germain prime.

Together with 220222363, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (220222363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110111180 + 110111181.

It is an arithmetic number, because the mean of its divisors is an integer number (110111181).

Almost surely, 2^220222361 is an apocalyptic number.

It is an amenable number.

220222361 is a deficient number, since it is larger than the sum of its proper divisors (1).

220222361 is an equidigital number, since it uses as much as digits as its factorization.

220222361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 220222361 is about 14839.8908688710. The cubic root of 220222361 is about 603.8843917515.

Adding to 220222361 its reverse (163222022), we get a palindrome (383444383).

The spelling of 220222361 in words is "two hundred twenty million, two hundred twenty-two thousand, three hundred sixty-one".