11221002222211 has 4 divisors (see below), whose sum is σ = 11221457293800. Its totient is φ = 11220547150624.

The previous prime is 11221002222151. The next prime is 11221002222263. The reversal of 11221002222211 is 11222220012211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11221002222211 - 2¹⁵ = 11221002189443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11221002222611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227498806 + ... + 227548123.

It is an arithmetic number, because the mean of its divisors is an integer number (2805364323450).

Almost surely, 2^{11221002222211} is an apocalyptic number.

11221002222211 is a deficient number, since it is larger than the sum of its proper divisors (455071589).

11221002222211 is an equidigital number, since it uses as much as digits as its factorization.

11221002222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455071588.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11221002222211 its reverse (11222220012211), we get a palindrome (22443222234422).

The spelling of 11221002222211 in words is "eleven trillion, two hundred twenty-one billion, two million, two hundred twenty-two thousand, two hundred eleven".