220144111 has 16 divisors (see below), whose sum is σ = 244839168. Its totient is φ = 196257600.

The previous prime is 220144103. The next prime is 220144121. The reversal of 220144111 is 111441022.

It is a happy number.

It is not a de Polignac number, because 220144111 - 2³ = 220144103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220144121) 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 15 ways as a sum of consecutive naturals, for example, 206566 + ... + 207628.

It is an arithmetic number, because the mean of its divisors is an integer number (15302448).

Almost surely, 2^220144111 is an apocalyptic number.

220144111 is a deficient number, since it is larger than the sum of its proper divisors (24695057).

220144111 is a wasteful number, since it uses less digits than its factorization.

220144111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 220144111 is about 14837.2541597157. The cubic root of 220144111 is about 603.8128586711.

Adding to 220144111 its reverse (111441022), we get a palindrome (331585133).

The spelling of 220144111 in words is "two hundred twenty million, one hundred forty-four thousand, one hundred eleven".