11220221222211 has 8 divisors (see below), whose sum is σ = 15074495688384. Its totient is φ = 7423047118760.

The previous prime is 11220221222131. The next prime is 11220221222213. The reversal of 11220221222211 is 11222212202211.

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 11220221222211 - 2¹⁹ = 11220220697923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11220221222213) 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, 14275090221 + ... + 14275091006.

It is an arithmetic number, because the mean of its divisors is an integer number (1884311961048).

Almost surely, 2^{11220221222211} is an apocalyptic number.

11220221222211 is a deficient number, since it is larger than the sum of its proper divisors (3854274466173).

11220221222211 is a wasteful number, since it uses less digits than its factorization.

11220221222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28550181361.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 11220221222211 its reverse (11222212202211), we get a palindrome (22442433424422).

The spelling of 11220221222211 in words is "eleven trillion, two hundred twenty billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred eleven".