2221203143 has 4 divisors (see below), whose sum is σ = 2230497120. Its totient is φ = 2211909168.

The previous prime is 2221203139. The next prime is 2221203161. The reversal of 2221203143 is 3413021222.

2221203143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2221203143 - 2² = 2221203139 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 (2221203163) 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, 4646630 + ... + 4647107.

It is an arithmetic number, because the mean of its divisors is an integer number (557624280).

Almost surely, 2^2221203143 is an apocalyptic number.

2221203143 is a deficient number, since it is larger than the sum of its proper divisors (9293977).

2221203143 is an equidigital number, since it uses as much as digits as its factorization.

2221203143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9293976.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2221203143 is about 47129.6418721806. The cubic root of 2221203143 is about 1304.7563718757.

Adding to 2221203143 its reverse (3413021222), we get a palindrome (5634224365).

The spelling of 2221203143 in words is "two billion, two hundred twenty-one million, two hundred three thousand, one hundred forty-three".