22020112221 has 16 divisors (see below), whose sum is σ = 29455086528. Its totient is φ = 14632675200.

The previous prime is 22020112207. The next prime is 22020112241. The reversal of 22020112221 is 12221102022.

It is not a de Polignac number, because 22020112221 - 2¹⁴ = 22020095837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22020112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020112241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1391926 + ... + 1407656.

It is an arithmetic number, because the mean of its divisors is an integer number (1840942908).

Almost surely, 2^22020112221 is an apocalyptic number.

It is an amenable number.

22020112221 is a deficient number, since it is larger than the sum of its proper divisors (7434974307).

22020112221 is a wasteful number, since it uses less digits than its factorization.

22020112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17212.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22020112221 its reverse (12221102022), we get a palindrome (34241214243).

The spelling of 22020112221 in words is "twenty-two billion, twenty million, one hundred twelve thousand, two hundred twenty-one".