12111102122 has 8 divisors (see below), whose sum is σ = 20761889376. Its totient is φ = 5190472332.

The previous prime is 12111102097. The next prime is 12111102139. The reversal of 12111102122 is 22120111121.

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

It is a Harshad number since it is a multiple of its sum of digits (14), and also a Moran number because the ratio is a prime number: 865078723 = 12111102122 / (1 + 2 + 1 + 1 + 1 + 1 + 0 + 2 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 12111102097 and 12111102106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 432539348 + ... + 432539375.

It is an arithmetic number, because the mean of its divisors is an integer number (2595236172).

Almost surely, 2^12111102122 is an apocalyptic number.

12111102122 is a deficient number, since it is larger than the sum of its proper divisors (8650787254).

12111102122 is an equidigital number, since it uses as much as digits as its factorization.

12111102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865078732.

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

Adding to 12111102122 its reverse (22120111121), we get a palindrome (34231213243).

The spelling of 12111102122 in words is "twelve billion, one hundred eleven million, one hundred two thousand, one hundred twenty-two".