11021872 has 10 divisors (see below), whose sum is σ = 21354908. Its totient is φ = 5510928.

The previous prime is 11021869. The next prime is 11021873. The reversal of 11021872 is 27812011.

It is not an unprimeable number, because it can be changed into a prime (11021873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344418 + ... + 344449.

Almost surely, 2^11021872 is an apocalyptic number.

It is an amenable number.

11021872 is a deficient number, since it is larger than the sum of its proper divisors (10333036).

11021872 is an equidigital number, since it uses as much as digits as its factorization.

11021872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688875 (or 688869 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 11021872 is about 3319.9204809754. The cubic root of 11021872 is about 222.5453141727.

Adding to 11021872 its reverse (27812011), we get a palindrome (38833883).

The spelling of 11021872 in words is "eleven million, twenty-one thousand, eight hundred seventy-two".