11220001011001 has 2 divisors, whose sum is σ = 11220001011002. Its totient is φ = 11220001011000.

The previous prime is 11220001010971. The next prime is 11220001011067. The reversal of 11220001011001 is 10011010002211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10004891628601 + 1215109382400 = 3163051^2 + 1102320^2 .

It is a cyclic number.

It is not a de Polignac number, because 11220001011001 - 2¹⁷ = 11220000879929 is a prime.

It is not a weakly prime, because it can be changed into another prime (11220007011001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610000505500 + 5610000505501.

It is an arithmetic number, because the mean of its divisors is an integer number (5610000505501).

Almost surely, 2^{11220001011001} is an apocalyptic number.

It is an amenable number.

11220001011001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220001011001 is an equidigital number, since it uses as much as digits as its factorization.

11220001011001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11220001011001 its reverse (10011010002211), we get a palindrome (21231011013212).

The spelling of 11220001011001 in words is "eleven trillion, two hundred twenty billion, one million, eleven thousand, one".