20222122212211 has 4 divisors (see below), whose sum is σ = 20222340622632. Its totient is φ = 20221903801792.

The previous prime is 20222122212209. The next prime is 20222122212239. The reversal of 20222122212211 is 11221222122202.

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 20222122212211 - 2¹ = 20222122212209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20222122212011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109066270 + ... + 109251523.

It is an arithmetic number, because the mean of its divisors is an integer number (5055585155658).

Almost surely, 2^{20222122212211} is an apocalyptic number.

20222122212211 is a deficient number, since it is larger than the sum of its proper divisors (218410421).

20222122212211 is an equidigital number, since it uses as much as digits as its factorization.

20222122212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218410420.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 20222122212211 its reverse (11221222122202), we get a palindrome (31443344334413).

Subtracting from 20222122212211 its reverse (11221222122202), we obtain a palindrome (9000900090009).

The spelling of 20222122212211 in words is "twenty trillion, two hundred twenty-two billion, one hundred twenty-two million, two hundred twelve thousand, two hundred eleven".