22020221011 has 4 divisors (see below), whose sum is σ = 22025139624. Its totient is φ = 22015302400.

The previous prime is 22020220997. The next prime is 22020221029. The reversal of 22020221011 is 11012202022.

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 22020221011 - 2⁹ = 22020220499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22020220982 and 22020221000.

It is not an unprimeable number, because it can be changed into a prime (22020221051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2452585 + ... + 2461546.

It is an arithmetic number, because the mean of its divisors is an integer number (5506284906).

Almost surely, 2^22020221011 is an apocalyptic number.

22020221011 is a deficient number, since it is larger than the sum of its proper divisors (4918613).

22020221011 is an equidigital number, since it uses as much as digits as its factorization.

22020221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4918612.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22020221011 its reverse (11012202022), we get a palindrome (33032423033).

The spelling of 22020221011 in words is "twenty-two billion, twenty million, two hundred twenty-one thousand, eleven".