2229191 has 4 divisors (see below), whose sum is σ = 2237352. Its totient is φ = 2221032.

The previous prime is 2229169. The next prime is 2229239. The reversal of 2229191 is 1919222.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2229191 - 2¹⁰ = 2228167 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 2229191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2229121) 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, 3656 + ... + 4221.

It is an arithmetic number, because the mean of its divisors is an integer number (559338).

2^2229191 is an apocalyptic number.

2229191 is a deficient number, since it is larger than the sum of its proper divisors (8161).

2229191 is an equidigital number, since it uses as much as digits as its factorization.

2229191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8160.

The product of its digits is 648, while the sum is 26.

The square root of 2229191 is about 1493.0475545005. The cubic root of 2229191 is about 130.6318549091.

It can be divided in two parts, 222 and 9191, that multiplied together give a palindrome (2040402).

The spelling of 2229191 in words is "two million, two hundred twenty-nine thousand, one hundred ninety-one".