11022001 has 16 divisors (see below), whose sum is σ = 12268800. Its totient is φ = 9854208.

The previous prime is 11021993. The next prime is 11022023. The reversal of 11022001 is 10022011.

It is a cyclic number.

It is not a de Polignac number, because 11022001 - 2³ = 11021993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11022101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38806 + ... + 39088.

It is an arithmetic number, because the mean of its divisors is an integer number (766800).

Almost surely, 2^11022001 is an apocalyptic number.

It is an amenable number.

11022001 is a deficient number, since it is larger than the sum of its proper divisors (1246799).

11022001 is a wasteful number, since it uses less digits than its factorization.

11022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 11022001 is about 3319.9399090947. The cubic root of 11022001 is about 222.5461823928.

Adding to 11022001 its reverse (10022011), we get a palindrome (21044012).

The spelling of 11022001 in words is "eleven million, twenty-two thousand, one".