11211560 has 32 divisors (see below), whose sum is σ = 25436160. Its totient is φ = 4447296.

The previous prime is 11211547. The next prime is 11211569. The reversal of 11211560 is 6511211.

It is not an unprimeable number, because it can be changed into a prime (11211569) 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, 3977 + ... + 6183.

It is an arithmetic number, because the mean of its divisors is an integer number (794880).

Almost surely, 2^11211560 is an apocalyptic number.

11211560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11211560 is an abundant number, since it is smaller than the sum of its proper divisors (14224600).

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

11211560 is a wasteful number, since it uses less digits than its factorization.

11211560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2345 (or 2341 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 11211560 is about 3348.3667660518. The cubic root of 11211560 is about 223.8147384013.

Adding to 11211560 its reverse (6511211), we get a palindrome (17722771).

The spelling of 11211560 in words is "eleven million, two hundred eleven thousand, five hundred sixty".