22131444222211 has 4 divisors (see below), whose sum is σ = 22549018641552. Its totient is φ = 21713869802872.

The previous prime is 22131444222187. The next prime is 22131444222253. The reversal of 22131444222211 is 11222244413122.

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 22131444222211 - 2⁴¹ = 19932420966659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22131444232211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208787209591 + ... + 208787209696.

It is an arithmetic number, because the mean of its divisors is an integer number (5637254660388).

Almost surely, 2^{22131444222211} is an apocalyptic number.

22131444222211 is a deficient number, since it is larger than the sum of its proper divisors (417574419341).

22131444222211 is an equidigital number, since it uses as much as digits as its factorization.

22131444222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417574419340.

The product of its digits is 12288, while the sum is 31.

Adding to 22131444222211 its reverse (11222244413122), we get a palindrome (33353688635333).

The spelling of 22131444222211 in words is "twenty-two trillion, one hundred thirty-one billion, four hundred forty-four million, two hundred twenty-two thousand, two hundred eleven".