20222222211 has 64 divisors (see below), whose sum is σ = 32335718400. Its totient is φ = 12443678208.

The previous prime is 20222222113. The next prime is 20222222213. The reversal of 20222222211 is 11222222202.

It is not a de Polignac number, because 20222222211 - 2⁹ = 20222221699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20222222213) 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 63 ways as a sum of consecutive naturals, for example, 18333286 + ... + 18334388.

It is an arithmetic number, because the mean of its divisors is an integer number (505245600).

Almost surely, 2^20222222211 is an apocalyptic number.

20222222211 is a deficient number, since it is larger than the sum of its proper divisors (12113496189).

20222222211 is a wasteful number, since it uses less digits than its factorization.

20222222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1865 (or 1859 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20222222211 its reverse (11222222202), we get a palindrome (31444444413).

Subtracting from 20222222211 its reverse (11222222202), we obtain a palindrome (9000000009).

The spelling of 20222222211 in words is "twenty billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred eleven".