20332221211 has 4 divisors (see below), whose sum is σ = 20383436272. Its totient is φ = 20281006152.

The previous prime is 20332221209. The next prime is 20332221227. The reversal of 20332221211 is 11212223302.

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 20332221211 - 2¹ = 20332221209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20332221011) 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 3 ways as a sum of consecutive naturals, for example, 25606935 + ... + 25607728.

It is an arithmetic number, because the mean of its divisors is an integer number (5095859068).

Almost surely, 2^20332221211 is an apocalyptic number.

20332221211 is a deficient number, since it is larger than the sum of its proper divisors (51215061).

20332221211 is an equidigital number, since it uses as much as digits as its factorization.

20332221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51215060.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20332221211 its reverse (11212223302), we get a palindrome (31544444513).

The spelling of 20332221211 in words is "twenty billion, three hundred thirty-two million, two hundred twenty-one thousand, two hundred eleven".