12111133222 has 4 divisors (see below), whose sum is σ = 18166699836. Its totient is φ = 6055566610.

The previous prime is 12111133201. The next prime is 12111133231. The reversal of 12111133222 is 22233111121.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12111133222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3027783304 + ... + 3027783307.

It is an arithmetic number, because the mean of its divisors is an integer number (4541674959).

Almost surely, 2^12111133222 is an apocalyptic number.

12111133222 is a deficient number, since it is larger than the sum of its proper divisors (6055566614).

12111133222 is an equidigital number, since it uses as much as digits as its factorization.

12111133222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6055566613.

The product of its digits is 144, while the sum is 19.

Adding to 12111133222 its reverse (22233111121), we get a palindrome (34344244343).

The spelling of 12111133222 in words is "twelve billion, one hundred eleven million, one hundred thirty-three thousand, two hundred twenty-two".