2122247 has 4 divisors (see below), whose sum is σ = 2127000. Its totient is φ = 2117496.

The previous prime is 2122231. The next prime is 2122259. The reversal of 2122247 is 7422212.

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 2122247 - 2⁴ = 2122231 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 (2122277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1628 + ... + 2625.

It is an arithmetic number, because the mean of its divisors is an integer number (531750).

2^2122247 is an apocalyptic number.

2122247 is a deficient number, since it is larger than the sum of its proper divisors (4753).

2122247 is an equidigital number, since it uses as much as digits as its factorization.

2122247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4752.

The product of its digits is 448, while the sum is 20.

The square root of 2122247 is about 1456.7933964705. The cubic root of 2122247 is about 128.5085360245.

Adding to 2122247 its reverse (7422212), we get a palindrome (9544459).

The spelling of 2122247 in words is "two million, one hundred twenty-two thousand, two hundred forty-seven".