11221020001 has 8 divisors (see below), whose sum is σ = 11266879680. Its totient is φ = 11175191568.

The previous prime is 11221019993. The next prime is 11221020011. The reversal of 11221020001 is 10002012211.

11221020001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11221020001 - 2³ = 11221019993 is a prime.

It is a super-2 number, since 2×11221020001² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11221020001.

It is not an unprimeable number, because it can be changed into a prime (11221020011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 942850 + ... + 954676.

It is an arithmetic number, because the mean of its divisors is an integer number (1408359960).

Almost surely, 2^11221020001 is an apocalyptic number.

It is an amenable number.

11221020001 is a deficient number, since it is larger than the sum of its proper divisors (45859679).

11221020001 is a wasteful number, since it uses less digits than its factorization.

11221020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15623.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11221020001 its reverse (10002012211), we get a palindrome (21223032212).

The spelling of 11221020001 in words is "eleven billion, two hundred twenty-one million, twenty thousand, one".