2221266116 has 6 divisors (see below), whose sum is σ = 3887215710. Its totient is φ = 1110633056.

The previous prime is 2221266083. The next prime is 2221266127. The reversal of 2221266116 is 6116621222.

It can be written as a sum of positive squares in only one way, i.e., 1981140100 + 240126016 = 44510^2 + 15496^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277658261 + ... + 277658268.

It is an arithmetic number, because the mean of its divisors is an integer number (647869285).

Almost surely, 2^2221266116 is an apocalyptic number.

It is an amenable number.

2221266116 is a deficient number, since it is larger than the sum of its proper divisors (1665949594).

2221266116 is a wasteful number, since it uses less digits than its factorization.

2221266116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555316533 (or 555316531 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 2221266116 is about 47130.3099501796. The cubic root of 2221266116 is about 1304.7687020772.

Adding to 2221266116 its reverse (6116621222), we get a palindrome (8337887338).

The spelling of 2221266116 in words is "two billion, two hundred twenty-one million, two hundred sixty-six thousand, one hundred sixteen".