12022222211111 has 16 divisors (see below), whose sum is σ = 13769362542336. Its totient is φ = 10282525900416.

The previous prime is 12022222211089. The next prime is 12022222211143. The reversal of 12022222211111 is 11111222222021.

It is not a de Polignac number, because 12022222211111 - 2⁴² = 7624175700007 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 (12022222211411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5012735 + ... + 7012271.

It is an arithmetic number, because the mean of its divisors is an integer number (860585158896).

Almost surely, 2^{12022222211111} is an apocalyptic number.

12022222211111 is a deficient number, since it is larger than the sum of its proper divisors (1747140331225).

12022222211111 is an equidigital number, since it uses as much as digits as its factorization.

12022222211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001398.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12022222211111 its reverse (11111222222021), we get a palindrome (23133444433132).

The spelling of 12022222211111 in words is "twelve trillion, twenty-two billion, two hundred twenty-two million, two hundred eleven thousand, one hundred eleven".