20222122111 has 4 divisors (see below), whose sum is σ = 20226787000. Its totient is φ = 20217457224.

The previous prime is 20222122097. The next prime is 20222122133. The reversal of 20222122111 is 11122122202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11122122202 = 2 ⋅5561061101.

It is a cyclic number.

It is not a de Polignac number, because 20222122111 - 2¹⁷ = 20221991039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222129111) 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, 2325936 + ... + 2334613.

It is an arithmetic number, because the mean of its divisors is an integer number (5056696750).

Almost surely, 2^20222122111 is an apocalyptic number.

20222122111 is a deficient number, since it is larger than the sum of its proper divisors (4664889).

20222122111 is an equidigital number, since it uses as much as digits as its factorization.

20222122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4664888.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20222122111 its reverse (11122122202), we get a palindrome (31344244313).

Subtracting from 20222122111 its reverse (11122122202), we obtain a palindrome (9099999909).

The spelling of 20222122111 in words is "twenty billion, two hundred twenty-two million, one hundred twenty-two thousand, one hundred eleven".