11000021001 has 8 divisors (see below), whose sum is σ = 15172442880. Its totient is φ = 7080473232.

The previous prime is 11000020979. The next prime is 11000021017. The reversal of 11000021001 is 10012000011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11000021001 - 2⁹ = 11000020489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11000021401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63218425 + ... + 63218598.

It is an arithmetic number, because the mean of its divisors is an integer number (1896555360).

Almost surely, 2^11000021001 is an apocalyptic number.

It is an amenable number.

11000021001 is a deficient number, since it is larger than the sum of its proper divisors (4172421879).

11000021001 is a wasteful number, since it uses less digits than its factorization.

11000021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126437055.

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 11000021001 its reverse (10012000011), we get a palindrome (21012021012).

The spelling of 11000021001 in words is "eleven billion, twenty-one thousand, one".