11220222211211 has 8 divisors (see below), whose sum is σ = 12378031257984. Its totient is φ = 10104515311680.

The previous prime is 11220222211183. The next prime is 11220222211229. The reversal of 11220222211211 is 11211222202211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11220222211211 - 2¹⁸ = 11220221949067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11220222219211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10525536251 + ... + 10525537316.

It is an arithmetic number, because the mean of its divisors is an integer number (1547253907248).

Almost surely, 2^{11220222211211} is an apocalyptic number.

11220222211211 is a deficient number, since it is larger than the sum of its proper divisors (1157809046773).

11220222211211 is a wasteful number, since it uses less digits than its factorization.

11220222211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21051073621.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 11220222211211 its reverse (11211222202211), we get a palindrome (22431444413422).

The spelling of 11220222211211 in words is "eleven trillion, two hundred twenty billion, two hundred twenty-two million, two hundred eleven thousand, two hundred eleven".