1239222 has 16 divisors (see below), whose sum is σ = 2491632. Its totient is φ = 410880.

The previous prime is 1239197. The next prime is 1239223. The reversal of 1239222 is 2229321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1239223) 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 7 ways as a sum of consecutive naturals, for example, 1018 + ... + 1874.

It is an arithmetic number, because the mean of its divisors is an integer number (155727).

2^1239222 is an apocalyptic number.

1239222 is an abundant number, since it is smaller than the sum of its proper divisors (1252410).

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

1239222 is a wasteful number, since it uses less digits than its factorization.

1239222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103.

The product of its digits is 432, while the sum is 21.

The square root of 1239222 is about 1113.2034854419. The cubic root of 1239222 is about 107.4112337358.

Subtracting 1239222 from its reverse (2229321), we obtain a palindrome (990099).

The spelling of 1239222 in words is "one million, two hundred thirty-nine thousand, two hundred twenty-two".