220101143 has 4 divisors (see below), whose sum is σ = 222753048. Its totient is φ = 217449240.

The previous prime is 220101137. The next prime is 220101163. The reversal of 220101143 is 341101022.

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 220101143 - 2¹⁸ = 219838999 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 (220101113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1325828 + ... + 1325993.

It is an arithmetic number, because the mean of its divisors is an integer number (55688262).

Almost surely, 2^220101143 is an apocalyptic number.

220101143 is a deficient number, since it is larger than the sum of its proper divisors (2651905).

220101143 is an equidigital number, since it uses as much as digits as its factorization.

220101143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2651904.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 220101143 is about 14835.8061122408. The cubic root of 220101143 is about 603.7735718014.

Adding to 220101143 its reverse (341101022), we get a palindrome (561202165).

The spelling of 220101143 in words is "two hundred twenty million, one hundred one thousand, one hundred forty-three".