2122249 has 4 divisors (see below), whose sum is σ = 2195460. Its totient is φ = 2049040.

The previous prime is 2122231. The next prime is 2122259. The reversal of 2122249 is 9422212.

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

It can be written as a sum of positive squares in 2 ways, for example, as 822649 + 1299600 = 907^2 + 1140^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122249 - 2⁹ = 2121737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122259) 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, 36562 + ... + 36619.

It is an arithmetic number, because the mean of its divisors is an integer number (548865).

2^2122249 is an apocalyptic number.

2122249 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2122249 is a deficient number, since it is larger than the sum of its proper divisors (73211).

2122249 is an equidigital number, since it uses as much as digits as its factorization.

2122249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73210.

The product of its digits is 576, while the sum is 22.

The square root of 2122249 is about 1456.7940829095. The cubic root of 2122249 is about 128.5085763932.

The spelling of 2122249 in words is "two million, one hundred twenty-two thousand, two hundred forty-nine".