1222254 has 24 divisors (see below), whose sum is σ = 2889432. Its totient is φ = 370320.

The previous prime is 1222253. The next prime is 1222259. The reversal of 1222254 is 4522221.

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

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2889 + ... + 3284.

It is an arithmetic number, because the mean of its divisors is an integer number (120393).

2^1222254 is an apocalyptic number.

1222254 is an abundant number, since it is smaller than the sum of its proper divisors (1667178).

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

1222254 is a wasteful number, since it uses less digits than its factorization.

1222254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6192 (or 6189 counting only the distinct ones).

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

The square root of 1222254 is about 1105.5559687325. Note that the first 3 decimals coincide. The cubic root of 1222254 is about 106.9187376129.

Adding to 1222254 its reverse (4522221), we get a palindrome (5744475).

The spelling of 1222254 in words is "one million, two hundred twenty-two thousand, two hundred fifty-four".