1100216 has 32 divisors (see below), whose sum is σ = 2268000. Its totient is φ = 497280.

The previous prime is 1100213. The next prime is 1100219. The reversal of 1100216 is 6120011.

It is an interprime number because it is at equal distance from previous prime (1100213) and next prime (1100219).

It is a junction number, because it is equal to n+sod(n) for n = 1100197 and 1100206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100213) 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, 7310 + ... + 7458.

It is an arithmetic number, because the mean of its divisors is an integer number (70875).

2^1100216 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 1100216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1134000).

1100216 is an abundant number, since it is smaller than the sum of its proper divisors (1167784).

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

1100216 is a wasteful number, since it uses less digits than its factorization.

1100216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1100216 is about 1048.9118170752. The cubic root of 1100216 is about 103.2347678460.

Adding to 1100216 its reverse (6120011), we get a palindrome (7220227).

The spelling of 1100216 in words is "one million, one hundred thousand, two hundred sixteen".