2122243 has 4 divisors (see below), whose sum is σ = 2233960. Its totient is φ = 2010528.

The previous prime is 2122231. The next prime is 2122259. The reversal of 2122243 is 3422212.

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-2122243 is a prime.

It is a Duffinian number.

2122243 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2122213) 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, 55830 + ... + 55867.

It is an arithmetic number, because the mean of its divisors is an integer number (558490).

2^2122243 is an apocalyptic number.

2122243 is a deficient number, since it is larger than the sum of its proper divisors (111717).

2122243 is a wasteful number, since it uses less digits than its factorization.

2122243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111716.

The product of its digits is 192, while the sum is 16.

The square root of 2122243 is about 1456.7920235916. The cubic root of 2122243 is about 128.5084552870.

Adding to 2122243 its reverse (3422212), we get a palindrome (5544455).

The spelling of 2122243 in words is "two million, one hundred twenty-two thousand, two hundred forty-three".