20221222222211 has 4 divisors (see below), whose sum is σ = 20311900348992. Its totient is φ = 20130544095432.

The previous prime is 20221222222177. The next prime is 20221222222237. The reversal of 20221222222211 is 11222222212202.

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 20221222222211 - 2¹⁴ = 20221222205827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20221222222811) 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, 45339063056 + ... + 45339063501.

It is an arithmetic number, because the mean of its divisors is an integer number (5077975087248).

Almost surely, 2^{20221222222211} is an apocalyptic number.

20221222222211 is a deficient number, since it is larger than the sum of its proper divisors (90678126781).

20221222222211 is an equidigital number, since it uses as much as digits as its factorization.

20221222222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90678126780.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 20221222222211 its reverse (11222222212202), we get a palindrome (31443444434413).

The spelling of 20221222222211 in words is "twenty trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred eleven".