11222011212211 has 4 divisors (see below), whose sum is σ = 11222736773112. Its totient is φ = 11221285651312.

The previous prime is 11222011212169. The next prime is 11222011212221. The reversal of 11222011212211 is 11221211022211.

It is a happy number.

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 11222011212211 - 2²¹ = 11222009115059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11222011212221) 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, 362757250 + ... + 362788183.

It is an arithmetic number, because the mean of its divisors is an integer number (2805684193278).

Almost surely, 2^{11222011212211} is an apocalyptic number.

11222011212211 is a deficient number, since it is larger than the sum of its proper divisors (725560901).

11222011212211 is an equidigital number, since it uses as much as digits as its factorization.

11222011212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725560900.

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

Adding to 11222011212211 its reverse (11221211022211), we get a palindrome (22443222234422).

The spelling of 11222011212211 in words is "eleven trillion, two hundred twenty-two billion, eleven million, two hundred twelve thousand, two hundred eleven".