1322216 has 24 divisors (see below), whose sum is σ = 2884770. Its totient is φ = 566496.

The previous prime is 1322203. The next prime is 1322219. The reversal of 1322216 is 6122231.

It can be written as a sum of positive squares in only one way, i.e., 729316 + 592900 = 854^2 + 770^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1322194 and 1322203.

It is not an unprimeable number, because it can be changed into a prime (1322219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1295 + ... + 2078.

2^1322216 is an apocalyptic number.

It is an amenable number.

1322216 is an abundant number, since it is smaller than the sum of its proper divisors (1562554).

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

1322216 is a wasteful number, since it uses less digits than its factorization.

1322216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393 (or 3382 counting only the distinct ones).

The product of its digits is 144, while the sum is 17.

The square root of 1322216 is about 1149.8765151093. The cubic root of 1322216 is about 109.7574822413.

Adding to 1322216 its reverse (6122231), we get a palindrome (7444447).

The spelling of 1322216 in words is "one million, three hundred twenty-two thousand, two hundred sixteen".