2211230243 has 4 divisors (see below), whose sum is σ = 2222454960. Its totient is φ = 2200005528.

The previous prime is 2211230227. The next prime is 2211230249. The reversal of 2211230243 is 3420321122.

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 2211230243 - 2⁴ = 2211230227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211230249) 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, 5612063 + ... + 5612456.

It is an arithmetic number, because the mean of its divisors is an integer number (555613740).

Almost surely, 2^2211230243 is an apocalyptic number.

2211230243 is a deficient number, since it is larger than the sum of its proper divisors (11224717).

2211230243 is a wasteful number, since it uses less digits than its factorization.

2211230243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11224716.

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

The square root of 2211230243 is about 47023.7200038449. The cubic root of 2211230243 is about 1302.8007158570.

Adding to 2211230243 its reverse (3420321122), we get a palindrome (5631551365).

The spelling of 2211230243 in words is "two billion, two hundred eleven million, two hundred thirty thousand, two hundred forty-three".