2220611 has 4 divisors (see below), whose sum is σ = 2248800. Its totient is φ = 2192424.

The previous prime is 2220553. The next prime is 2220643. The reversal of 2220611 is 1160222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2220611 is a prime.

It is a super-2 number, since 2×2220611² = 9862226426642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13976 + ... + 14133.

It is an arithmetic number, because the mean of its divisors is an integer number (562200).

2^2220611 is an apocalyptic number.

2220611 is a deficient number, since it is larger than the sum of its proper divisors (28189).

2220611 is an equidigital number, since it uses as much as digits as its factorization.

2220611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28188.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2220611 is about 1490.1714666440. The cubic root of 2220611 is about 130.4640418048.

Adding to 2220611 its reverse (1160222), we get a palindrome (3380833).

The spelling of 2220611 in words is "two million, two hundred twenty thousand, six hundred eleven".