11201122000021 has 8 divisors (see below), whose sum is σ = 11860191958680. Its totient is φ = 10542072089088.

The previous prime is 11201121999971. The next prime is 11201122000031. The reversal of 11201122000021 is 12000022110211.

It can be written as a sum of positive squares in 4 ways, for example, as 4827446151025 + 6373675848996 = 2197145^2 + 2524614^2 .

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 11201122000021 - 2¹⁷ = 11201121868949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11201121999965 and 11201122000010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201122000031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3853966 + ... + 6103711.

It is an arithmetic number, because the mean of its divisors is an integer number (1482523994835).

Almost surely, 2^{11201122000021} is an apocalyptic number.

It is an amenable number.

11201122000021 is a deficient number, since it is larger than the sum of its proper divisors (659069958659).

11201122000021 is an equidigital number, since it uses as much as digits as its factorization.

11201122000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10023863.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11201122000021 its reverse (12000022110211), we get a palindrome (23201144110232).

The spelling of 11201122000021 in words is "eleven trillion, two hundred one billion, one hundred twenty-two million, twenty-one", and thus it is an aban number.