220344101 has 2 divisors, whose sum is σ = 220344102. Its totient is φ = 220344100.

The previous prime is 220344097. The next prime is 220344107. The reversal of 220344101 is 101443022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135722500 + 84621601 = 11650^2 + 9199^2 .

It is a cyclic number.

It is not a de Polignac number, because 220344101 - 2² = 220344097 is a prime.

It is a Sophie Germain prime.

It is a Chen 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 220344101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220344107) 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 as a sum of consecutive naturals, namely, 110172050 + 110172051.

It is an arithmetic number, because the mean of its divisors is an integer number (110172051).

Almost surely, 2^220344101 is an apocalyptic number.

It is an amenable number.

220344101 is a deficient number, since it is larger than the sum of its proper divisors (1).

220344101 is an equidigital number, since it uses as much as digits as its factorization.

220344101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 220344101 is about 14843.9920843417. The cubic root of 220344101 is about 603.9956480031.

Adding to 220344101 its reverse (101443022), we get a palindrome (321787123).

The spelling of 220344101 in words is "two hundred twenty million, three hundred forty-four thousand, one hundred one".