2220020243 has 4 divisors (see below), whose sum is σ = 2537166000. Its totient is φ = 1902874488.

The previous prime is 2220020221. The next prime is 2220020269. The reversal of 2220020243 is 3420200222.

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 2220020243 - 2¹⁴ = 2220003859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220020213) 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, 158572868 + ... + 158572881.

It is an arithmetic number, because the mean of its divisors is an integer number (634291500).

Almost surely, 2^2220020243 is an apocalyptic number.

2220020243 is a deficient number, since it is larger than the sum of its proper divisors (317145757).

2220020243 is an equidigital number, since it uses as much as digits as its factorization.

2220020243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317145756.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 2220020243 is about 47117.0907739432. The cubic root of 2220020243 is about 1304.5247150855.

Adding to 2220020243 its reverse (3420200222), we get a palindrome (5640220465).

The spelling of 2220020243 in words is "two billion, two hundred twenty million, twenty thousand, two hundred forty-three".