11211330 has 128 divisors (see below), whose sum is σ = 32659200. Its totient is φ = 2433024.

The previous prime is 11211293. The next prime is 11211331. The reversal of 11211330 is 3311211.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11211331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 125926 + ... + 126014.

It is an arithmetic number, because the mean of its divisors is an integer number (255150).

Almost surely, 2^11211330 is an apocalyptic number.

11211330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11211330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16329600).

11211330 is an abundant number, since it is smaller than the sum of its proper divisors (21447870).

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

11211330 is a wasteful number, since it uses less digits than its factorization.

11211330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 11211330 is about 3348.3324207731. The cubic root of 11211330 is about 223.8132079053.

Adding to 11211330 its reverse (3311211), we get a palindrome (14522541).

The spelling of 11211330 in words is "eleven million, two hundred eleven thousand, three hundred thirty".