12222031111 has 4 divisors (see below), whose sum is σ = 12753423792. Its totient is φ = 11690638432.

The previous prime is 12222031097. The next prime is 12222031117. The reversal of 12222031111 is 11113022221.

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 12222031111 - 2¹³ = 12222022919 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 (12222031117) 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, 265696306 + ... + 265696351.

It is an arithmetic number, because the mean of its divisors is an integer number (3188355948).

Almost surely, 2^12222031111 is an apocalyptic number.

12222031111 is a deficient number, since it is larger than the sum of its proper divisors (531392681).

12222031111 is an equidigital number, since it uses as much as digits as its factorization.

12222031111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531392680.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12222031111 its reverse (11113022221), we get a palindrome (23335053332).

The spelling of 12222031111 in words is "twelve billion, two hundred twenty-two million, thirty-one thousand, one hundred eleven".