220412143 has 16 divisors (see below), whose sum is σ = 258740800. Its totient is φ = 187675488.

The previous prime is 220412131. The next prime is 220412167. The reversal of 220412143 is 341214022.

It is not a de Polignac number, because 220412143 - 2²⁵ = 186857711 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220412143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220412113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51805 + ... + 55897.

It is an arithmetic number, because the mean of its divisors is an integer number (16171300).

Almost surely, 2^220412143 is an apocalyptic number.

220412143 is a deficient number, since it is larger than the sum of its proper divisors (38328657).

220412143 is an equidigital number, since it uses as much as digits as its factorization.

220412143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4271 (or 4257 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 220412143 is about 14846.2838111091. The cubic root of 220412143 is about 604.0578126540.

Adding to 220412143 its reverse (341214022), we get a palindrome (561626165).

The spelling of 220412143 in words is "two hundred twenty million, four hundred twelve thousand, one hundred forty-three".