2220911 has 8 divisors (see below), whose sum is σ = 2769024. Its totient is φ = 1730520.

The previous prime is 2220893. The next prime is 2220913. The reversal of 2220911 is 1190222.

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

It is not a de Polignac number, because 2220911 - 2¹⁰ = 2219887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2220911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220913) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14345 + ... + 14498.

It is an arithmetic number, because the mean of its divisors is an integer number (346128).

2^2220911 is an apocalyptic number.

2220911 is a deficient number, since it is larger than the sum of its proper divisors (548113).

2220911 is a wasteful number, since it uses less digits than its factorization.

2220911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28861.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 2220911 is about 1490.2721228017. The cubic root of 2220911 is about 130.4699166819.

The spelling of 2220911 in words is "two million, two hundred twenty thousand, nine hundred eleven".