22021444211 has 8 divisors (see below), whose sum is σ = 23727304944. Its totient is φ = 20317284000.

The previous prime is 22021444169. The next prime is 22021444213. The reversal of 22021444211 is 11244412022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22021444211 - 2²² = 22017249907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22021444213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398165 + ... + 450086.

It is an arithmetic number, because the mean of its divisors is an integer number (2965913118).

Almost surely, 2^22021444211 is an apocalyptic number.

22021444211 is a deficient number, since it is larger than the sum of its proper divisors (1705860733).

22021444211 is a wasteful number, since it uses less digits than its factorization.

22021444211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850261.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 22021444211 its reverse (11244412022), we get a palindrome (33265856233).

The spelling of 22021444211 in words is "twenty-two billion, twenty-one million, four hundred forty-four thousand, two hundred eleven".