11220211122211 has 16 divisors (see below), whose sum is σ = 14130641561344. Its totient is φ = 8671075497504.

The previous prime is 11220211122191. The next prime is 11220211122221. The reversal of 11220211122211 is 11222111202211.

It is a happy number.

It is not a de Polignac number, because 11220211122211 - 2¹³ = 11220211114019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11220211122221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1433705661 + ... + 1433713486.

It is an arithmetic number, because the mean of its divisors is an integer number (883165097584).

Almost surely, 2^{11220211122211} is an apocalyptic number.

11220211122211 is a deficient number, since it is larger than the sum of its proper divisors (2910430439133).

11220211122211 is a wasteful number, since it uses less digits than its factorization.

11220211122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2867419210.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 11220211122211 its reverse (11222111202211), we get a palindrome (22442322324422).

The spelling of 11220211122211 in words is "eleven trillion, two hundred twenty billion, two hundred eleven million, one hundred twenty-two thousand, two hundred eleven".