11021441 has 4 divisors (see below), whose sum is σ = 11108352. Its totient is φ = 10934532.

The previous prime is 11021411. The next prime is 11021473. The reversal of 11021441 is 14412011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14412011 = 2089 ⋅6899.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11021441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11021411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43265 + ... + 43518.

It is an arithmetic number, because the mean of its divisors is an integer number (2777088).

Almost surely, 2^11021441 is an apocalyptic number.

It is an amenable number.

11021441 is a deficient number, since it is larger than the sum of its proper divisors (86911).

11021441 is an equidigital number, since it uses as much as digits as its factorization.

11021441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86910.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 11021441 is about 3319.8555691475. The cubic root of 11021441 is about 222.5424133260.

Adding to 11021441 its reverse (14412011), we get a palindrome (25433452).

The spelling of 11021441 in words is "eleven million, twenty-one thousand, four hundred forty-one".