1122216 has 64 divisors (see below), whose sum is σ = 3110400. Its totient is φ = 335808.

The previous prime is 1122181. The next prime is 1122227. The reversal of 1122216 is 6122211.

1122216 = T₈₈ + T₈₉ + ... + T₁₉₄.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1122195 and 1122204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10435 + ... + 10541.

It is an arithmetic number, because the mean of its divisors is an integer number (48600).

2^1122216 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 1122216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1555200).

1122216 is an abundant number, since it is smaller than the sum of its proper divisors (1988184).

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

1122216 is a wasteful number, since it uses less digits than its factorization.

1122216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 154 counting only the distinct ones).

The product of its digits is 48, while the sum is 15.

The square root of 1122216 is about 1059.3469686557. The cubic root of 1122216 is about 103.9183283847.

Adding to 1122216 its reverse (6122211), we get a palindrome (7244427).

The spelling of 1122216 in words is "one million, one hundred twenty-two thousand, two hundred sixteen".