2216081810 has 32 divisors (see below), whose sum is σ = 4185160704. Its totient is φ = 843768000.

The previous prime is 2216081783. The next prime is 2216081821. The reversal of 2216081810 is 181806122.

It is a super-2 number, since 2×2216081810² = 9822037177225752200, which contains 22 as substring.

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 in 15 ways as a sum of consecutive naturals, for example, 39686 + ... + 77505.

It is an arithmetic number, because the mean of its divisors is an integer number (130786272).

Almost surely, 2^2216081810 is an apocalyptic number.

2216081810 is a deficient number, since it is larger than the sum of its proper divisors (1969078894).

2216081810 is a wasteful number, since it uses less digits than its factorization.

2216081810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117290.

The product of its (nonzero) digits is 1536, while the sum is 29.

The square root of 2216081810 is about 47075.2781191997. The cubic root of 2216081810 is about 1303.7528265657.

Adding to 2216081810 its reverse (181806122), we get a palindrome (2397887932).

The spelling of 2216081810 in words is "two billion, two hundred sixteen million, eighty-one thousand, eight hundred ten".