22011122202211 has 4 divisors (see below), whose sum is σ = 22061956203112. Its totient is φ = 21960288201312.

The previous prime is 22011122202193. The next prime is 22011122202221. The reversal of 22011122202211 is 11220222111022.

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 22011122202211 - 2⁹ = 22011122201699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22011122202221) 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, 25416999801 + ... + 25417000666.

It is an arithmetic number, because the mean of its divisors is an integer number (5515489050778).

Almost surely, 2^{22011122202211} is an apocalyptic number.

22011122202211 is a deficient number, since it is larger than the sum of its proper divisors (50834000901).

22011122202211 is an equidigital number, since it uses as much as digits as its factorization.

22011122202211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50834000900.

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

Adding to 22011122202211 its reverse (11220222111022), we get a palindrome (33231344313233).

The spelling of 22011122202211 in words is "twenty-two trillion, eleven billion, one hundred twenty-two million, two hundred two thousand, two hundred eleven".