11127220 has 24 divisors (see below), whose sum is σ = 25165224. Its totient is φ = 4108416.

The previous prime is 11127169. The next prime is 11127241. The reversal of 11127220 is 2272111.

11127220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1909924 + 9217296 = 1382^2 + 3036^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11127194 and 11127203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21139 + ... + 21658.

It is an arithmetic number, because the mean of its divisors is an integer number (1048551).

Almost surely, 2^11127220 is an apocalyptic number.

11127220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11127220 is an abundant number, since it is smaller than the sum of its proper divisors (14038004).

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

11127220 is a wasteful number, since it uses less digits than its factorization.

11127220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42819 (or 42817 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 11127220 is about 3335.7487915009. The cubic root of 11127220 is about 223.2521028315.

Adding to 11127220 its reverse (2272111), we get a palindrome (13399331).

The spelling of 11127220 in words is "eleven million, one hundred twenty-seven thousand, two hundred twenty".