11028121 has 16 divisors (see below), whose sum is σ = 12700800. Its totient is φ = 9485568.

The previous prime is 11028049. The next prime is 11028131. The reversal of 11028121 is 12182011.

It is a cyclic number.

It is not a de Polignac number, because 11028121 - 2⁷ = 11027993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11028095 and 11028104.

It is not an unprimeable number, because it can be changed into a prime (11028131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30540 + ... + 30898.

It is an arithmetic number, because the mean of its divisors is an integer number (793800).

Almost surely, 2^11028121 is an apocalyptic number.

It is an amenable number.

11028121 is a deficient number, since it is larger than the sum of its proper divisors (1672679).

11028121 is a wasteful number, since it uses less digits than its factorization.

11028121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528.

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 11028121 is about 3320.8614846151. The cubic root of 11028121 is about 222.5873645893.

The spelling of 11028121 in words is "eleven million, twenty-eight thousand, one hundred twenty-one".