2220042243 has 4 divisors (see below), whose sum is σ = 2960056328. Its totient is φ = 1480028160.

The previous prime is 2220042241. The next prime is 2220042269. The reversal of 2220042243 is 3422400222.

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

It is not a de Polignac number, because 2220042243 - 2¹ = 2220042241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220042241) 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, 370007038 + ... + 370007043.

It is an arithmetic number, because the mean of its divisors is an integer number (740014082).

Almost surely, 2^2220042243 is an apocalyptic number.

2220042243 is a deficient number, since it is larger than the sum of its proper divisors (740014085).

2220042243 is an equidigital number, since it uses as much as digits as its factorization.

2220042243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740014084.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 2220042243 is about 47117.3242342984. The cubic root of 2220042243 is about 1304.5290242728.

Adding to 2220042243 its reverse (3422400222), we get a palindrome (5642442465).

The spelling of 2220042243 in words is "two billion, two hundred twenty million, forty-two thousand, two hundred forty-three".