11001211222211 has 12 divisors (see below), whose sum is σ = 12798595103400. Its totient is φ = 9428675477760.

The previous prime is 11001211222201. The next prime is 11001211222279. The reversal of 11001211222211 is 11222211210011.

It is not a de Polignac number, because 11001211222211 - 2³⁴ = 10984031353027 is a prime.

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 11001211222211.

It is not an unprimeable number, because it can be changed into a prime (11001211222201) 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 11 ways as a sum of consecutive naturals, for example, 10620830 + ... + 11610531.

It is an arithmetic number, because the mean of its divisors is an integer number (1066549591950).

Almost surely, 2^{11001211222211} is an apocalyptic number.

11001211222211 is a deficient number, since it is larger than the sum of its proper divisors (1797383881189).

11001211222211 is a wasteful number, since it uses less digits than its factorization.

11001211222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22241474 (or 22241467 counting only the distinct ones).

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

Adding to 11001211222211 its reverse (11222211210011), we get a palindrome (22223422432222).

The spelling of 11001211222211 in words is "eleven trillion, one billion, two hundred eleven million, two hundred twenty-two thousand, two hundred eleven".