22120211112211 has 4 divisors (see below), whose sum is σ = 22386719679912. Its totient is φ = 21853702544512.

The previous prime is 22120211112193. The next prime is 22120211112227. The reversal of 22120211112211 is 11221111202122.

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 22120211112211 - 2¹⁵ = 22120211079443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22120211122211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133254283726 + ... + 133254283891.

It is an arithmetic number, because the mean of its divisors is an integer number (5596679919978).

Almost surely, 2^{22120211112211} is an apocalyptic number.

22120211112211 is a deficient number, since it is larger than the sum of its proper divisors (266508567701).

22120211112211 is an equidigital number, since it uses as much as digits as its factorization.

22120211112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266508567700.

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

Adding to 22120211112211 its reverse (11221111202122), we get a palindrome (33341322314333).

The spelling of 22120211112211 in words is "twenty-two trillion, one hundred twenty billion, two hundred eleven million, one hundred twelve thousand, two hundred eleven".