11214220 has 24 divisors (see below), whose sum is σ = 24935904. Its totient is φ = 4221696.

The previous prime is 11214211. The next prime is 11214221. The reversal of 11214220 is 2241211.

It is a happy number.

11214220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 11214220.

It is not an unprimeable number, because it can be changed into a prime (11214221) 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, 16152 + ... + 16831.

It is an arithmetic number, because the mean of its divisors is an integer number (1038996).

Almost surely, 2^11214220 is an apocalyptic number.

11214220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11214220 is an abundant number, since it is smaller than the sum of its proper divisors (13721684).

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

11214220 is a wasteful number, since it uses less digits than its factorization.

11214220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33009 (or 33007 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 11214220 is about 3348.7639510721. The cubic root of 11214220 is about 223.8324373991.

Adding to 11214220 its reverse (2241211), we get a palindrome (13455431).

The spelling of 11214220 in words is "eleven million, two hundred fourteen thousand, two hundred twenty".