11219712 has 72 divisors (see below), whose sum is σ = 34142976. Its totient is φ = 3204096.

The previous prime is 11219701. The next prime is 11219713. The reversal of 11219712 is 21791211.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (11219713) 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, 4333 + ... + 6419.

It is an arithmetic number, because the mean of its divisors is an integer number (474208).

Almost surely, 2^11219712 is an apocalyptic number.

11219712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11219712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17071488).

11219712 is an abundant number, since it is smaller than the sum of its proper divisors (22923264).

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

11219712 is an equidigital number, since it uses as much as digits as its factorization.

11219712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113 (or 2099 counting only the distinct ones).

The product of its digits is 252, while the sum is 24.

The square root of 11219712 is about 3349.5838547497. The cubic root of 11219712 is about 223.8689709884.

The spelling of 11219712 in words is "eleven million, two hundred nineteen thousand, seven hundred twelve".