11122211120201 has 4 divisors (see below), whose sum is σ = 11776458833172. Its totient is φ = 10467963407232.

The previous prime is 11122211120173. The next prime is 11122211120219. The reversal of 11122211120201 is 10202111222111.

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 5365685796025 + 5756525324176 = 2316395^2 + 2399276^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11122211120201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 654247712953 = 11122211120201 / (1 + 1 + 1 + 2 + 2 + 2 + 1 + 1 + 1 + 2 + 0 + 2 + 0 + 1).

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 11122211120201.

It is not an unprimeable number, because it can be changed into a prime (11122211120221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327123856460 + ... + 327123856493.

It is an arithmetic number, because the mean of its divisors is an integer number (2944114708293).

Almost surely, 2^{11122211120201} is an apocalyptic number.

It is an amenable number.

11122211120201 is a deficient number, since it is larger than the sum of its proper divisors (654247712971).

11122211120201 is an equidigital number, since it uses as much as digits as its factorization.

11122211120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654247712970.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11122211120201 its reverse (10202111222111), we get a palindrome (21324322342312).

The spelling of 11122211120201 in words is "eleven trillion, one hundred twenty-two billion, two hundred eleven million, one hundred twenty thousand, two hundred one".