1222258 has 16 divisors (see below), whose sum is σ = 1915200. Its totient is φ = 584496.

The previous prime is 1222253. The next prime is 1222259. The reversal of 1222258 is 8522221.

It is a d-powerful number, because it can be written as 1 + 2¹⁰ + 2¹³ + 2¹⁷ + 2²⁰ + 5⁴ + 8⁵ .

It is a plaindrome in base 10.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6043 + ... + 6241.

It is an arithmetic number, because the mean of its divisors is an integer number (119700).

2^1222258 is an apocalyptic number.

1222258 is a deficient number, since it is larger than the sum of its proper divisors (692942).

1222258 is a wasteful number, since it uses less digits than its factorization.

1222258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321.

The product of its digits is 640, while the sum is 22.

The square root of 1222258 is about 1105.5577777755. The cubic root of 1222258 is about 106.9188542483.

Adding to 1222258 its reverse (8522221), we get a palindrome (9744479).

The spelling of 1222258 in words is "one million, two hundred twenty-two thousand, two hundred fifty-eight".