2116223236 has 6 divisors (see below), whose sum is σ = 3703390670. Its totient is φ = 1058111616.

The previous prime is 2116223233. The next prime is 2116223237. The reversal of 2116223236 is 6323226112.

It can be written as a sum of positive squares in only one way, i.e., 1207562500 + 908660736 = 34750^2 + 30144^2 .

It is not an unprimeable number, because it can be changed into a prime (2116223233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264527901 + ... + 264527908.

Almost surely, 2^2116223236 is an apocalyptic number.

It is an amenable number.

2116223236 is a deficient number, since it is larger than the sum of its proper divisors (1587167434).

2116223236 is a wasteful number, since it uses less digits than its factorization.

2116223236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529055813 (or 529055811 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

The square root of 2116223236 is about 46002.4264142665. The cubic root of 2116223236 is about 1283.8683503898.

Adding to 2116223236 its reverse (6323226112), we get a palindrome (8439449348).

The spelling of 2116223236 in words is "two billion, one hundred sixteen million, two hundred twenty-three thousand, two hundred thirty-six".