20022220211 has 6 divisors (see below), whose sum is σ = 23291154180. Its totient is φ = 17161902996.

The previous prime is 20022220193. The next prime is 20022220213. The reversal of 20022220211 is 11202222002.

It is not a de Polignac number, because 20022220211 - 2⁶ = 20022220147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20022220213) 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 5 ways as a sum of consecutive naturals, for example, 204308321 + ... + 204308418.

It is an arithmetic number, because the mean of its divisors is an integer number (3881859030).

Almost surely, 2^20022220211 is an apocalyptic number.

20022220211 is a deficient number, since it is larger than the sum of its proper divisors (3268933969).

20022220211 is an equidigital number, since it uses as much as digits as its factorization.

20022220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408616753 (or 408616746 counting only the distinct ones).

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

Adding to 20022220211 its reverse (11202222002), we get a palindrome (31224442213).

The spelling of 20022220211 in words is "twenty billion, twenty-two million, two hundred twenty thousand, two hundred eleven".