2122254 has 16 divisors (see below), whose sum is σ = 4716240. Its totient is φ = 707400.

The previous prime is 2122231. The next prime is 2122259. The reversal of 2122254 is 4522212.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a d-powerful number, because it can be written as 2³ + 1 + 2⁹ + 2¹³ + 2²¹ + 5 + 4⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122259) 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 7 ways as a sum of consecutive naturals, for example, 19597 + ... + 19704.

It is an arithmetic number, because the mean of its divisors is an integer number (294765).

2^2122254 is an apocalyptic number.

2122254 is an abundant number, since it is smaller than the sum of its proper divisors (2593986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2122254 is a wasteful number, since it uses less digits than its factorization.

2122254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39312 (or 39306 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 2122254 is about 1456.7957990055. The cubic root of 2122254 is about 128.5086773148.

Adding to 2122254 its reverse (4522212), we get a palindrome (6644466).

The spelling of 2122254 in words is "two million, one hundred twenty-two thousand, two hundred fifty-four".