2211229 has 4 divisors (see below), whose sum is σ = 2215584. Its totient is φ = 2206876.

The previous prime is 2211227. The next prime is 2211233. The reversal of 2211229 is 9221122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2211229 - 2¹ = 2211227 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211227) 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 3 ways as a sum of consecutive naturals, for example, 1297 + ... + 2470.

It is an arithmetic number, because the mean of its divisors is an integer number (553896).

2^2211229 is an apocalyptic number.

It is an amenable number.

2211229 is a deficient number, since it is larger than the sum of its proper divisors (4355).

2211229 is an equidigital number, since it uses as much as digits as its factorization.

2211229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4354.

The product of its digits is 144, while the sum is 19.

The square root of 2211229 is about 1487.0201747118. The cubic root of 2211229 is about 130.2800471742.

The spelling of 2211229 in words is "two million, two hundred eleven thousand, two hundred twenty-nine".