220102243 has 4 divisors (see below), whose sum is σ = 220184280. Its totient is φ = 220020208.

The previous prime is 220102241. The next prime is 220102271. The reversal of 220102243 is 342201022.

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

It is a cyclic number.

It is not a de Polignac number, because 220102243 - 2¹ = 220102241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220102241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36853 + ... + 42406.

It is an arithmetic number, because the mean of its divisors is an integer number (55046070).

Almost surely, 2^220102243 is an apocalyptic number.

220102243 is a deficient number, since it is larger than the sum of its proper divisors (82037).

220102243 is an equidigital number, since it uses as much as digits as its factorization.

220102243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82036.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 220102243 is about 14835.8431846660. The cubic root of 220102243 is about 603.7745776266.

Adding to 220102243 its reverse (342201022), we get a palindrome (562303265).

The spelling of 220102243 in words is "two hundred twenty million, one hundred two thousand, two hundred forty-three".