2221116 has 24 divisors (see below), whose sum is σ = 5209344. Its totient is φ = 736560.

The previous prime is 2221111. The next prime is 2221127. The reversal of 2221116 is 6111222.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2221095 and 2221104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221111) 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, 2911 + ... + 3593.

It is an arithmetic number, because the mean of its divisors is an integer number (217056).

2^2221116 is an apocalyptic number.

It is an amenable number.

2221116 is an abundant number, since it is smaller than the sum of its proper divisors (2988228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2221116 is a wasteful number, since it uses less digits than its factorization.

2221116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961 (or 959 counting only the distinct ones).

The product of its digits is 48, while the sum is 15.

The square root of 2221116 is about 1490.3409005996. The cubic root of 2221116 is about 130.4739308770.

Adding to 2221116 its reverse (6111222), we get a palindrome (8332338).

The spelling of 2221116 in words is "two million, two hundred twenty-one thousand, one hundred sixteen".