22020210221 has 8 divisors (see below), whose sum is σ = 22242166080. Its totient is φ = 21798729792.

The previous prime is 22020210127. The next prime is 22020210239. The reversal of 22020210221 is 12201202022.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22020210221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22020210196 and 22020210205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020210271) 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, 25391 + ... + 211388.

It is an arithmetic number, because the mean of its divisors is an integer number (2780270760).

Almost surely, 2^22020210221 is an apocalyptic number.

It is an amenable number.

22020210221 is a deficient number, since it is larger than the sum of its proper divisors (221955859).

22020210221 is a wasteful number, since it uses less digits than its factorization.

22020210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237715.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22020210221 its reverse (12201202022), we get a palindrome (34221412243).

The spelling of 22020210221 in words is "twenty-two billion, twenty million, two hundred ten thousand, two hundred twenty-one".