20332221101 has 8 divisors (see below), whose sum is σ = 20611103160. Its totient is φ = 20055230208.

The previous prime is 20332221067. The next prime is 20332221181. The reversal of 20332221101 is 10112223302.

It can be written as a sum of positive squares in 4 ways, for example, as 1274418601 + 19057802500 = 35699^2 + 138050^2 .

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-20332221101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20332221101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20332221181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451136 + ... + 494153.

It is an arithmetic number, because the mean of its divisors is an integer number (2576387895).

Almost surely, 2^20332221101 is an apocalyptic number.

It is an amenable number.

20332221101 is a deficient number, since it is larger than the sum of its proper divisors (278882059).

20332221101 is a wasteful number, since it uses less digits than its factorization.

20332221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945583.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20332221101 its reverse (10112223302), we get a palindrome (30444444403).

The spelling of 20332221101 in words is "twenty billion, three hundred thirty-two million, two hundred twenty-one thousand, one hundred one".