2218350233 has 12 divisors (see below), whose sum is σ = 2460736740. Its totient is φ = 1998168480.

The previous prime is 2218350229. The next prime is 2218350269. The reversal of 2218350233 is 3320538122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1703377984 + 514972249 = 41272^2 + 22693^2 .

It is not a de Polignac number, because 2218350233 - 2² = 2218350229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2218350196 and 2218350205.

It is not an unprimeable number, because it can be changed into a prime (2218350203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70910 + ... + 97287.

It is an arithmetic number, because the mean of its divisors is an integer number (205061395).

Almost surely, 2^2218350233 is an apocalyptic number.

It is an amenable number.

2218350233 is a deficient number, since it is larger than the sum of its proper divisors (242386507).

2218350233 is a wasteful number, since it uses less digits than its factorization.

2218350233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168328 (or 168317 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 2218350233 is about 47099.3655265121. The cubic root of 2218350233 is about 1304.1975235008.

Adding to 2218350233 its reverse (3320538122), we get a palindrome (5538888355).

The spelling of 2218350233 in words is "two billion, two hundred eighteen million, three hundred fifty thousand, two hundred thirty-three".