2221006611 has 8 divisors (see below), whose sum is σ = 2961583504. Its totient is φ = 1480550400.

The previous prime is 2221006609. The next prime is 2221006621. The reversal of 2221006611 is 1166001222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2221006611 - 2¹ = 2221006609 is a prime.

It is a super-2 number, since 2×2221006611² = 9865740732211410642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221006621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29811 + ... + 73011.

It is an arithmetic number, because the mean of its divisors is an integer number (370197938).

Almost surely, 2^2221006611 is an apocalyptic number.

2221006611 is a deficient number, since it is larger than the sum of its proper divisors (740576893).

2221006611 is a wasteful number, since it uses less digits than its factorization.

2221006611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60341.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 2221006611 is about 47127.5568112755. The cubic root of 2221006611 is about 1304.7178891367.

Adding to 2221006611 its reverse (1166001222), we get a palindrome (3387007833).

The spelling of 2221006611 in words is "two billion, two hundred twenty-one million, six thousand, six hundred eleven".