11221222120211 has 8 divisors (see below), whose sum is σ = 11573436596544. Its totient is φ = 10873735355200.

The previous prime is 11221222120183. The next prime is 11221222120217. The reversal of 11221222120211 is 11202122212211.

11221222120211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11221222120211 is a prime.

It is a super-3 number, since 3×11221222120211³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11221222120217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1181923010 + ... + 1181932503.

It is an arithmetic number, because the mean of its divisors is an integer number (1446679574568).

Almost surely, 2^{11221222120211} is an apocalyptic number.

11221222120211 is a deficient number, since it is larger than the sum of its proper divisors (352214476333).

11221222120211 is a wasteful number, since it uses less digits than its factorization.

11221222120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2363855661.

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

Adding to 11221222120211 its reverse (11202122212211), we get a palindrome (22423344332422).

The spelling of 11221222120211 in words is "eleven trillion, two hundred twenty-one billion, two hundred twenty-two million, one hundred twenty thousand, two hundred eleven".