12022221311 has 4 divisors (see below), whose sum is σ = 12032133672. Its totient is φ = 12012308952.

The previous prime is 12022221293. The next prime is 12022221359. The reversal of 12022221311 is 11312222021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11312222021 = 503 ⋅22489507.

It is a cyclic number.

It is not a de Polignac number, because 12022221311 - 2²⁶ = 11955112447 is a prime.

It is a super-3 number, since 3×12022221311³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12022221311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022221361) 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, 4954361 + ... + 4956786.

It is an arithmetic number, because the mean of its divisors is an integer number (3008033418).

Almost surely, 2^12022221311 is an apocalyptic number.

12022221311 is a deficient number, since it is larger than the sum of its proper divisors (9912361).

12022221311 is an equidigital number, since it uses as much as digits as its factorization.

12022221311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9912360.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12022221311 its reverse (11312222021), we get a palindrome (23334443332).

The spelling of 12022221311 in words is "twelve billion, twenty-two million, two hundred twenty-one thousand, three hundred eleven".