11001222010001 has 4 divisors (see below), whose sum is σ = 11001796775604. Its totient is φ = 11000647244400.

The previous prime is 11001222009991. The next prime is 11001222010021. The reversal of 11001222010001 is 10001022210011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2978454672400 + 8022767337601 = 1725820^2 + 2832449^2 .

It is a cyclic number.

It is not a de Polignac number, because 11001222010001 - 2¹⁴ = 11001221993617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11001222010021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287354090 + ... + 287392371.

It is an arithmetic number, because the mean of its divisors is an integer number (2750449193901).

Almost surely, 2^{11001222010001} is an apocalyptic number.

It is an amenable number.

11001222010001 is a deficient number, since it is larger than the sum of its proper divisors (574765603).

11001222010001 is an equidigital number, since it uses as much as digits as its factorization.

11001222010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574765602.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11001222010001 its reverse (10001022210011), we get a palindrome (21002244220012).

The spelling of 11001222010001 in words is "eleven trillion, one billion, two hundred twenty-two million, ten thousand, one".