1222716 has 48 divisors (see below), whose sum is σ = 3185280. Its totient is φ = 361920.

The previous prime is 1222693. The next prime is 1222717. The reversal of 1222716 is 6172221.

It is a junction number, because it is equal to n+sod(n) for n = 1222692 and 1222701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7710 + ... + 7866.

It is an arithmetic number, because the mean of its divisors is an integer number (66360).

2^1222716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1592640).

1222716 is an abundant number, since it is smaller than the sum of its proper divisors (1962564).

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

1222716 is a wasteful number, since it uses less digits than its factorization.

1222716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 232 counting only the distinct ones).

The product of its digits is 336, while the sum is 21.

The square root of 1222716 is about 1105.7648936370. The cubic root of 1222716 is about 106.9322073265.

Adding to 1222716 its reverse (6172221), we get a palindrome (7394937).

The spelling of 1222716 in words is "one million, two hundred twenty-two thousand, seven hundred sixteen".