11021140 has 96 divisors (see below), whose sum is σ = 27659520. Its totient is φ = 3649536.

The previous prime is 11021123. The next prime is 11021147. The reversal of 11021140 is 4112011.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113572 + ... + 113668.

It is an arithmetic number, because the mean of its divisors is an integer number (288120).

Almost surely, 2^11021140 is an apocalyptic number.

11021140 is a gapful number since it is divisible by the number (10) 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 11021140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13829760).

11021140 is an abundant number, since it is smaller than the sum of its proper divisors (16638380).

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

11021140 is a wasteful number, since it uses less digits than its factorization.

11021140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 11021140 is about 3319.8102355406. The cubic root of 11021140 is about 222.5403873999.

Adding to 11021140 its reverse (4112011), we get a palindrome (15133151).

The spelling of 11021140 in words is "eleven million, twenty-one thousand, one hundred forty".