12022211111 has 8 divisors (see below), whose sum is σ = 12170196864. Its totient is φ = 11874300280.

The previous prime is 12022211099. The next prime is 12022211119. The reversal of 12022211111 is 11111222021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12022211111 - 2¹⁰ = 12022210087 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 (12022211119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347960 + ... + 380946.

It is an arithmetic number, because the mean of its divisors is an integer number (1521274608).

Almost surely, 2^12022211111 is an apocalyptic number.

12022211111 is a deficient number, since it is larger than the sum of its proper divisors (147985753).

12022211111 is an equidigital number, since it uses as much as digits as its factorization.

12022211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37461.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12022211111 its reverse (11111222021), we get a palindrome (23133433132).

The spelling of 12022211111 in words is "twelve billion, twenty-two million, two hundred eleven thousand, one hundred eleven".