218006101 has 2 divisors, whose sum is σ = 218006102. Its totient is φ = 218006100.

The previous prime is 218006081. The next prime is 218006153. The reversal of 218006101 is 101600812.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154405476 + 63600625 = 12426^2 + 7975^2 .

It is a cyclic number.

It is not a de Polignac number, because 218006101 - 2¹³ = 217997909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (218006801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109003050 + 109003051.

It is an arithmetic number, because the mean of its divisors is an integer number (109003051).

Almost surely, 2^218006101 is an apocalyptic number.

It is an amenable number.

218006101 is a deficient number, since it is larger than the sum of its proper divisors (1).

218006101 is an equidigital number, since it uses as much as digits as its factorization.

218006101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 218006101 is about 14765.0296647179. The cubic root of 218006101 is about 601.8517798984.

Adding to 218006101 its reverse (101600812), we get a palindrome (319606913).

The spelling of 218006101 in words is "two hundred eighteen million, six thousand, one hundred one".