218101033 has 2 divisors, whose sum is σ = 218101034. Its totient is φ = 218101032.

The previous prime is 218101003. The next prime is 218101049. The reversal of 218101033 is 330101812.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217503504 + 597529 = 14748^2 + 773^2 .

It is a cyclic number.

It is not a de Polignac number, because 218101033 - 2²¹ = 216003881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 218101033.

It is not a weakly prime, because it can be changed into another prime (218101003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109050516 + 109050517.

It is an arithmetic number, because the mean of its divisors is an integer number (109050517).

Almost surely, 2^218101033 is an apocalyptic number.

It is an amenable number.

218101033 is a deficient number, since it is larger than the sum of its proper divisors (1).

218101033 is an equidigital number, since it uses as much as digits as its factorization.

218101033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 218101033 is about 14768.2440730102. The cubic root of 218101033 is about 601.9391271510.

Adding to 218101033 its reverse (330101812), we get a palindrome (548202845).

The spelling of 218101033 in words is "two hundred eighteen million, one hundred one thousand, thirty-three".